The answer
On film, the thing a family called aggression is repeatedly read by the trainers as something else - and the reading is usually given after watching the dog, not before. Several readings recur.
Insecurity. Kelton says of Bun, a dog hostile to staff and lunging at passers-by, "i don't think it's rooted any kind of aggression boone doesn't seem aggressive to me at all" - his forwardness is his solution to fear, and the plan is to build confidence and penalise the actions. The trainer calls it "a fear bite reaction thing" and separates it from two other readings: "That's not aggressive. It's not protective. It's insecure". The instruction attached is small and hard: tell the person not to react at all.
A learned pattern. Nikki, a ten-month-old rescue referred for aggression, is read at evaluation as "I'm not seeing anything that's like full-on aggression" - she has learned, with two previous people, that barking, growling and planting make the pressure stop and let her keep things, and the plan is to reset that pattern so it produces nothing. Bo's crate guarding is described the same way: two patterns installed - fight when people reach in, or growl until they back off.
Arousal, and protection. Dutchess's trainer says some dogs get tight, overstimulate themselves and bite because they do not know what to do; her owner confirms it: the times she bit the other dogs, she was so excited. A GSD puppy's handler says some of what looks like reactivity may be the dog protecting her person - it will not show with the trainer.
Frustration and attention. Added in the 30 Sep update: asked how Whiskey is with other dogs, her trainer says he sees no dog aggression - she reacts behind a barrier because she wants to join him and the other dog, and her trouble at home is 'a mix of stress' and wanting the attention the family give the other dog. And Nikki's 'learned pattern' reading was tested four days after her evaluation: under deliberately annoying handling she did not try to bite, and a vet's report of a bite attempt during an injection is read as her not liking the feeling - with 'we don't know' kept in.
Accidental training. Baxter's trainer tells his owner that on-leash reactivity is normally built by the same sequence used to train a protection dog - hold the dog back on the leash, be nervous, and have the person leave when the dog barks - and that reversing those things can make it go away entirely. Samson's trainer says the same to a passer-by: restraint on the end of a leash can reinforce it by accident. Samson's own reading is a learned strategy - he has learned he can bully people into getting what he wants - plus redirection when he is ramped up and then feels pressure. Astro's trainer, who says he always wants to talk about where a dog's aggression comes from, reads Astro as protecting his space, a dog who freezes or flees before he fights. Milo's trainer reads a flare-up as a dog wanting his own space; the problem is the jump to full force, not the warning.
A history. For acquired dog-reactivity there is one concrete mechanism, from an owner: Rocko lived happily with other dogs until he was two, and "It was when he got bit that he stopped making good dog friends."
The practical move is to name the shape of the trigger, not the dog. Louie is described not as aggressive but as reactive when he feels confined - a read reached by a trainer at first meeting, and months later, in Spanish, by the man who took him on: "el perro no le gusta que lo acorralen" (the dog doesn't like being cornered).
Said on film: all of the above. Inferred: that these add up to a theory. They are separate diagnoses for separate families. And one honest counterweight is on film too: for a lot of dogs, Lola's trainer says, nothing happened - "They were born that way a lot of the time."
Angier K9 is a family-owned, play-based Board & Train serving Angier, Raleigh and the Triangle, with three full owner lessons.
What to do
Describe exactly what happens rather than calling it aggression: did he growl or bark first, or snap instantly? What did he do right after - back off scared, or keep coming? What was going on - was he cornered, confined, excited, guarding something, with you? Has a pattern been paying off - does growling make people back away? The answers change the plan. If he snaps and then seeks affection, tell people not to react at all. And be honest with the trainer about his history, including any time he was attacked.
What the trainers say
reactive or he sometimes will lash out right so i've seen that's kind of his pattern but i don't think it's rooted any kind of aggression boone doesn't seem aggressive to me at all
the down command obviously working on any kind of nervousness that's driving the low grade reactivity that he shows in these environments
He is! He was just insecure, bro.
Yeah, that's what's called like the most people. It's kind of like a fear bite reaction thing.
That's not aggressive. It's not protective. It's insecure That's an insecurity thing when they feel like they're like and they feel like Insecure about like what's going on for a second.
you don't want him scaring other people by doing things like that yeah so in that case like all you're gonna do is just tell the person not to react at all
but it doesn't look like he's doing anything from a place of territorial aggression obviously I've turned my back to him he's not really worried about me
I'm not seeing anything that's like full-on aggression.
the dog knows that there's a certain pattern and it's learned dealing with two different people
that he has said he's had two different patterns installed one he either gets in a fight when people try to get him out of the crate or number two he growls and acts like he's gonna do something and then gets people to just leave and back off
They have this thing where they'll get really tight and then they'll overstimulate themselves and they're like, I don't know what to do, I'm just going to bite you.
reactivity partial like I'm with my person that I need to protect and
he was definitely a lot more reactive than he felt confined and Christian's noted that as well that's when he's really shown some reactivity
but it's more like when there's pressure on him because if he can't get away
from don't know exactly we had no I have no idea what her life was before. We got her from the pound a year ago. It's legit just... They were born that way a lot of the time.
kind of went like we don't know but she doesn't seem aggressive at all she's a puppy
as far as like actual i don't see any aggression okay like with the dog um i think most of it was probably as far as like dog issues issues a mix of stress and environmental stress in general and then also just if you guys are giving attention to that dog she wants the attention
just related to like if I'm playing with that dog and she's on the other side then that's the problem she wants to come play with me and the dog together
because when any time a dog has any kind of like reactivity or aggression or anything like that i always want to talk about like where i think it comes from because there's different places
we train protection dogs and um the when someone has a dog that's being really reactive on leash to other dogs or or to people uh it's normally a combination of all the exact same things that we do to train a protection dog.
but it shouldn't jump straight from uh the dogs coming up oh hey who are you to full force like get out of the way like i hate you
that Samson has learned along the way in his life is that he can bully people into getting the things that he wants.
Know that happens and then but and sometimes we accidentally reinforce it by accident by like if we have them on the end of a Leash and they restrain it
How it looks, dog by dog
Bun
Hostility to staff and lunging at passers-by, read throughout as fear expressed forward - his solution to insecurity - not as aggression. Kelton says it at about a week and a half: he lashes out, but it is not rooted in aggression; even slight hackles at the truck read as insecurity. The program follows the reading: exposure, exploration, release to freedom with negative reinforcement to build coping, exercise, play - and penalise the off-limits actions.
On film
reactive or he sometimes will lash out right so i've seen that's kind of his pattern but i don't
the down command obviously working on any kind of nervousness that's driving the low grade reactivity that he shows in these environments
Zeus
The diagnosis from two directions. Early, in his run, the trainer turns his back and Zeus is untroubled - not territorial. At an owner lesson the household describes a snap and the trainer takes it apart: no growl, no bark, an instant snap, then scared, then wanting to be petted - a fear bite, not aggression, not protection, insecurity. The handling instruction is to tell people not to react at all. At the handover: he was just insecure.
On film
but it doesn't look like he's doing anything from a place of territorial aggression obviously I've turned my back to him he's not really worried about me
He just kind of snaps at them? Does he growl or like bark? He doesn't growl.
That's not aggressive. It's not protective. It's insecure That's an insecurity thing when they feel like they're like and they feel like Insecure about like what's going on for a second.
He is! He was just insecure, bro.
Nikki
A ten-month-old rescue referred after a call about aggression in specific situations. Guided with leash pressure against where she wanted to go, she growled, barked, sat and planted, but did not try to bite, and responded to a verbal 'uh-uh'. The trainer's working hypothesis, stated as such: a learned pattern from two previous people - growling and planting made the pressure stop and let her keep things - so the job is to reset it before she is placed. Reported leash-biting is read as irritation at being guided. Four days later (30 Sep update) the reading is tested rather than assumed. Because she is to be re-adopted and must be safe with children who tug on her, a gloved handler does the handling that annoys dogs - pulling on her, grabbing a paw - to see whether she will bite; by the handler's account she has not wanted to. The vet's report that she bit, or tried to, during an injection is read cautiously as her not liking the feeling, with the uncertainty kept: 'we don't know but she doesn't seem aggressive at all she's a puppy'.
On film
I'm not seeing anything that's like full-on aggression.
the dog knows that there's a certain pattern and it's learned dealing with two different people
So we wanna make sure that she won't bite any kids.
the vet went to go give her an injection or something and she didn't like the feeling
kind of went like we don't know but she doesn't seem aggressive at all she's a puppy
Shadow (German Shepherd puppy)
At a GSD puppy's go-home the trainer offers a different reading for barking the family sees and he does not: some of it may be protectiveness - I'm with my person and need to protect - which will not show with the trainer. He declines to train out property barking the owner wants to keep. Whatever the cause, 'let's go' must still work.
On film
reactivity partial like I'm with my person that I need to protect and
I don't know, she's a shepherd.
Rocko
The owner gives the mechanism twice, months apart: Rocko lived sociably with many animals until neighbouring dogs came into the yard and fought his dogs, and it was when he got bitten that he stopped making dog friends. It explains the case without pathologising the dog, and the prognosis offered is good. It is the owner's account, not something the footage shows.
On film
his other dog, including his mom, until he was two. When we got him, we lived in a house with four dogs, and it was fine. He was good with our oldest dog. It was when he got bit that he stopped making good dog friends.
the family that we were nannying for had four dogs, five cats and three birds or something like that. And he was okay with all of it, but then there was these two bijons that lived next door and the bijons had coming into the yard and fighting the dogs.
Louie
The trigger named instead of the dog. A handler meeting him cold says he is much more reactive when he feels confined, and cites Christian as having seen the same. Months later, at placement, the man taking him on says the same in Spanish - the dog does not like being cornered, and he only bites when he is afraid - and the English-speaking placement handler states it as pressure when he cannot get away.
On film
he was definitely a lot more reactive than he felt confined and Christian's noted that as well that's when he's really shown some reactivity
el perro no le gusta que lo acorralen
but it's more like when there's pressure on him because if he can't get away
Dutchess, Bo, Lola
Dutchess: arousal - some dogs overstimulate themselves and bite because they do not know what to do, and the owner agrees her bites happened when she was so excited. Bo: two crate-guarding patterns installed and paying. Lola: the counterweight - nobody knows her history, and for a lot of dogs nothing happened; they were born that way.
On film
They have this thing where they'll get really tight and then they'll overstimulate themselves and they're like, I don't know what to do, I'm just going to bite you.
that he has said he's had two different patterns installed one he either gets in a fight when people try to get him out of the crate or number two he growls and acts like he's gonna do something and then gets people to just leave and back off
from don't know exactly we had no I have no idea what her life was before. We got her from the pound a year ago. It's legit just... They were born that way a lot of the time.
Whiskey
New in the 30 Sep update. At Whiskey's first in-program owner lesson the family ask how she is with other dogs, and the trainer gives a reading other than aggression: behind a door, gate or fence, while he or another trainer moves other dogs, she whines and reacts because she wants to come and play with him and the dog together. He has been walking dogs past the fence until she calms. Her trouble with the dog at home he reads as a mix of stress and wanting the attention the family give the other dog - 'i don't see any aggression'.
On film
just related to like if I'm playing with that dog and she's on the other side then that's the problem she wants to come play with me and the dog together
as far as like actual i don't see any aggression okay like with the dog um i think most of it was probably as far as like dog issues issues a mix of stress and environmental stress in general and then also just if you guys are giving attention to that dog she wants the attention
about being aggressive with the dog she's just irritated because she wants all the attention
Astro
At Astro's update evaluation the trainer stops to say that whenever a dog shows reactivity or aggression he always wants to talk about where it comes from. His reading of Astro: protecting his space and feeling weird about people or other dogs, and a dog who freezes or flees before he fights - he has to be pushed to get there, which the trainer calls better than the alternative.
On film
because when any time a dog has any kind of like reactivity or aggression or anything like that i always want to talk about like where i think it comes from because there's different places
right um in this case i think that it's uh sometimes like protecting his space
very compliant they don't care right um he either chooses typically freeze uh or um or fight but he doesn't choose fight first he choose he'll freeze or flee before he fights
Baxter
When Baxter's owner wonders whether her own fear is part of the problem, the trainer answers with how protection dogs are made: hold the dog back on the leash, be as nervous as you can, have someone odd appear, and have that person leave when the dog barks. On-leash reactivity on an ordinary walk, he says, is normally the same sequence - and reversing those things can make it go away entirely.
On film
we train protection dogs and um the when someone has a dog that's being really reactive on leash to other dogs or or to people uh it's normally a combination of all the exact same things that we do to train a protection dog.
The way we train a protection dog is we hold them back with the leash and we try to be as nervous as we can
and so then you have to Reverse all those things and then it can go away entirely.
Milo
In a session titled with 'Aggression' in quotation marks, Milo's trainer reads his flare-up at another dog as a dog who sometimes wants his own space; the problem is not the warning but going straight from 'who are you' to full force. Resource guarding is floated as a possible reason before the demonstration.
On film
but it shouldn't jump straight from uh the dogs coming up oh hey who are you to full force like get out of the way like i hate you
barks like that okay and of course dogs like people sometimes they want their own space
I'm wondering maybe it's a resource guarding
Samson
Samson's trainer gives a learned-strategy reading: Samson has learned he can bully people into getting what he wants, and that has to stop working. At the go-home lesson he names redirection as a trigger - ramped up at something else and then feeling pressure from the person who tells him to knock it off. On another day he tells a passer-by that holding a dog back on the end of a leash can reinforce aggression by accident.
On film
that Samson has learned along the way in his life is that he can bully people into getting the things that he wants.
and i go and like tell him when you knock it off um and he's all ramped up like that he feels pressure from me
Know that happens and then but and sometimes we accidentally reinforce it by accident by like if we have them on the end of a Leash and they restrain it
Why it works
The trainers state mechanisms case by case. Insecurity: fear expressed forward as a solution (watch 02:25; watch 15:41). Learned pattern: growling, barking or planting has made people back off or yield, so it is repeated (watch 03:05; watch 11:25); the fix is to make it produce nothing. Arousal: over-stimulation with no known option ends in a bite (watch 24:16). Protection: some reactivity appears only with the dog's own person (watch 14:00). History: an attack closed the door on dog friendships (watch 34:22). Trigger shape: confinement or cornering, where the dog cannot get away (watch 10:21; watch 24:57). Frustration: a dog held behind a barrier while her people play with another dog reacts because she wants to join in, and household trouble can be stress plus competition for attention (watch 27:00). Accidental training: holding a dog back on the leash, a nervous handler and a stranger who leaves when the dog barks is the protection-dog recipe, and reversing it can undo it (watch 47:04; watch 20:25). Against all of these, Lola's trainer states baseline temperament (watch 06:19). Inferred: a general theory; none is stated, and the trainers do not claim to tell history from temperament from the outside.
Where the trainers differ
History or temperament?
One view
Something happened: an attack, a paying pattern, a situation that corners the dog.
On film
his other dog, including his mom, until he was two.
the dog knows that there's a certain pattern and it's learned dealing with two different people
Another view
Often nothing happened: they were born that way.
On film
from don't know exactly we had no I have no idea what her life was before. We got her from the pound a year ago. It's legit just... They were born that way a lot of the time.
How to read it
Both are said; the trainers do not claim a test.
Reactivity or protection?
One view
Reactivity to be fixed.
On film
the down command obviously working on any kind of nervousness that's driving the low grade reactivity that he shows in these environments
Another view
Partly protectiveness toward the owner, which the trainer may never see.
On film
reactivity partial like I'm with my person that I need to protect and
Common owner mistakes
- Reacting to a fear snap, which frightens the person and the dog more.
On film
you don't want him scaring other people by doing things like that yeah so in that case like all you're gonna do is just tell the person not to react at all
Zeus · Watch at 16:24 ↗ - Backing off when the dog growls, so the growl keeps working.
On film
that he has said he's had two different patterns installed one he either gets in a fight when people try to get him out of the crate or number two he growls and acts like he's gonna do something and then gets people to just leave and back off
Bo · Watch at 11:25 ↗ - Letting growling or planting get the dog out of what you asked.
On film
the dog knows that there's a certain pattern and it's learned dealing with two different people
Nikki · Watch at 3:05 ↗ - Cornering or confining a dog whose trigger is having no way out.
On film
but it's more like when there's pressure on him because if he can't get away
Louie · Watch at 24:57 ↗
Questions owners ask
My dog bit someone. Does that make him aggressive?
Not necessarily, in these trainers' reading. Zeus's trainer asks what the bite looked like: an instant snap with no growl, then fear, then the dog wanting to be petted is a fear bite - 'not aggressive, not protective, insecure'. Kelton reads Bun's lunging as insecurity, not aggression. A reported bite attempt at the vet's is read for Nikki as not liking an injection, while the handler keeps the uncertainty - and then checks it with a gloved handling test.
On film
That's not aggressive. It's not protective. It's insecure That's an insecurity thing when they feel like they're like and they feel like Insecure about like what's going on for a second.
reactive or he sometimes will lash out right so i've seen that's kind of his pattern but i don't
kind of went like we don't know but she doesn't seem aggressive at all she's a puppy
He used to be fine with other dogs. What changed?
For Rocko, the owner's account is that he was attacked in his own yard, and that was when he stopped making dog friends. The trainer took that as a good prognosis rather than a bad one.
On film
his other dog, including his mom, until he was two. When we got him, we lived in a house with four dogs, and it was fine. He was good with our oldest dog. It was when he got bit that he stopped making good dog friends.
She growls and plants when I try to move her. Is that aggression?
Nikki's trainer reads that as a learned pattern: with previous people, growling and planting made the pressure stop. The plan is to make it produce nothing.
On film
I'm not seeing anything that's like full-on aggression.
What should I tell people about my dog?
Name the situation, not the dog. Louie is described as reactive when he feels confined - a rule a household can follow - not as 'aggressive'.
On film
he was definitely a lot more reactive than he felt confined and Christian's noted that as well that's when he's really shown some reactivity
She goes off at our other dog. Is she dog-aggressive?
Not necessarily. Whiskey's trainer sees no dog aggression: behind a fence she reacts because she wants to join in when he plays with another dog, and at home her trouble looks like stress plus wanting the attention the family give the other dog. He works it by walking dogs past the barrier until she calms, then letting her out.
On film
just related to like if I'm playing with that dog and she's on the other side then that's the problem she wants to come play with me and the dog together
as far as like actual i don't see any aggression okay like with the dog um i think most of it was probably as far as like dog issues issues a mix of stress and environmental stress in general and then also just if you guys are giving attention to that dog she wants the attention