Field notes · Case

Reaper, Cane Corso

Aggression serious enough that the evaluation and early sessions were worked in bite suits. Kelton: 'we had to wear the suits and things like that before.' The case is behavior modification first, obedience second - in his words on 2026-09-11, 'his behavior modification has gone really well up until now' and only now are they 'pushing into the obedience stuff'.

Reaper is still in training. This is every session so far, in order.

Reaper, episode 1. It's a comforting name." "Hopefully this case won't be a grim one.

How he came to us

Acquired 2023 from a friend who divorced; the current owner had known him since he was a puppy.

Verbal correction and a prong collar, both "Ignored". Never an e-collar before Angier K9.

What his owner asked for

Family gathering. On leash hike. Out in the park to play.From the intake form, before any training

What this case teaches

How do you safely work with an aggressive dog?5 moments on filmHow do you get a dog to listen without a leash?7 moments on filmHow can I tell what my dog is feeling?2 moments on filmShould I pull my dog into position?1 moment on filmMy dog only obeys when he knows what is coming2 moments on filmHow do I know if my dog is dangerous?2 moments on filmWhat happens in a first dog training session?4 moments on filmShould I let my dog sniff before training?3 moments on filmWhat toy should I use to train my dog?5 moments on filmHow do I train my dog without treats?1 moment on filmWhy does my dog obey at home but not outside?5 moments on filmDoes my dog actually know the command?5 moments on filmWhy does my dog only listen when I'm pulling the leash?6 moments on filmHow do I stop my dog reacting to other dogs?10 moments on filmWhere should I train my dog?1 moment on filmIs it worth training an aggressive dog?4 moments on filmShould my dog heel for the whole walk?1 moment on filmHow do I build my dog's confidence?1 moment on filmWhat if correcting my dog doesn't work?2 moments on filmHow do I teach my dog to make better choices?1 moment on filmShould I stop my dog before he misbehaves?2 moments on filmWhen is it safe to let my dog off the leash?1 moment on filmHow does my dog know when he can stop?1 moment on filmWhy won't my dog listen when he is scared?1 moment on film

The record

60 clips across 5 filmed sessions, each linked to

It's a comforting name." "Hopefully this case won't be a grim one. 1:32
Reaper · episode 1

It's a comforting name." "Hopefully this case won't be a grim one.

Take the prong off inside — what he wears, and when 4:40
Reaper · episode 2

Take the prong off inside — what he wears, and when

How you hand over a dog nobody has tested yet 8:15
Reaper · episode 3

How you hand over a dog nobody has tested yet

Prediction error: "he thinks one thing's going to happen" 10:06
Reaper · episode 4

Prediction error: "he thinks one thing's going to happen"

The last big dog that hit him, with no suit on 11:00
Reaper · episode 5

The last big dog that hit him, with no suit on

Nobody knows what they'll actually do unless they've actually bit somebody 12:05
Reaper · episode 6

Nobody knows what they'll actually do unless they've actually bit somebody

The suit goes on 13:39
Reaper · episode 7

The suit goes on

First contact 16:19
Reaper · episode 8

First contact

What he already knows — down, stay, wait 20:09
Reaper · episode 9

What he already knows — down, stay, wait

He grabbed my arm, and he held my arm for a second 23:27
Reaper · episode 10

He grabbed my arm, and he held my arm for a second

"I wanted to see how extreme it was inside" — an hour in the house first 24:46
Reaper · episode 11

"I wanted to see how extreme it was inside" — an hour in the house first

Into the truck. Pick-up day ends 27:30
Reaper · episode 12

Into the truck. Pick-up day ends

"I'm going to suit up — at least partially." Most of the work so far was never filmed 0:01
Reaper · episode 13

"I'm going to suit up — at least partially." Most of the work so far was never filmed

"No-shows, like prediction errors" — and now he can come out relatively safely 0:47
Reaper · episode 14

"No-shows, like prediction errors" — and now he can come out relatively safely

Out of the kennel, into the space 6:29
Reaper · episode 15

Out of the kennel, into the space

Christian, a leather leash, a working yard 16:06
Reaper · episode 16

Christian, a leather leash, a working yard

The ball 27:59
Reaper · episode 17

The ball

The fence, and a dog deciding where to go 43:59
Reaper · episode 18

The fence, and a dog deciding where to go

I let him find his own way… we've made good progress today 67:29
Reaper · episode 20

I let him find his own way… we've made good progress today

Good boy, Reaper — the tone has changed 0:03
Reaper · episode 21

Good boy, Reaper — the tone has changed

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