My Story · Sully
Sully’s Story
This is the hardest thing I have written, and the reason I do almost everything the way I do it. If you are here because your own dog frightens you sometimes, read it. You are not the first.
Sully came to me at seven months old, when I was twenty-one, through a small rescue I was assisting. He severely lacked socialization and confidence, and the socialization he did get wasn’t healthy. I watched some of it happen. I said something. They didn’t take my advice.
Those are the moments I feel most needed. A moment that shapes a dog for the rest of his life can still be turned, but only if someone steps in.
Sully developed resource guarding, fear aggression, and reactivity. I had just moved to Florida. The mauling was recent and I was still getting the use of my right hand back. I was healing, mentally and physically, and I didn’t understand what I was up against. Looking back, his genetics were probably part of why his reactions ran so deep.
Sully is where I learned aggression firsthand. I learned how much people shrink their own lives around a dog’s behavior. I learned that a dog who is deeply sensitive underneath can present as the exact opposite, because he was forced to learn that this is the only way to stay safe. So many dogs live like that. Dogs communicate differently than we do, and a growl isn’t always aggression. It’s information. Sully learned early that his signals were ignored, so he did the only thing left to him. He reacted.
He stayed with me for almost five years. He was a foster, but the rescue shut down, and the dogs with problems went into a system that wouldn’t serve them. I couldn’t give up on him, even though I didn’t have the stability then to get him all the way there.
Sully. He loved his muzzle, because it meant an adventure.
The camper years
When I first got him, I was living in a camper, in a campground. The rescue asked me for help, and I wanted to do what I could, knowing what an uneducated placement would have meant for a dog like him.
The noise in that campground had never bothered me. I welcomed it, honestly — better than complete silence. That lasted right up until I had a dog who believed every sound was a personal attack. Walking him out to potty became a liability. Opening my own door became a liability, because of the kids and the loose dogs and the particular mindset people carry when they’re on vacation. Sully was faced with triggers and stressors constantly, and there was nowhere to put him where he wasn’t.
So I worked him hard. Routine first, because a dog who can predict his day has less to brace against. Then discipline, in the real sense of the word: structure he could lean on rather than punishment he had to survive.
About six months in with Sully, I made the decision that shaped the next several years of my life: I got into shelter work. He was the reason. Living with him had shown me exactly how a dog ends up labelled dangerous, and I knew there were kennels full of dogs whose stories started the same way his did — a missed window, a bad placement, a person who didn’t know what they were looking at. I wanted to be the person who did.
Then we had to move in with my mom while I looked for a place. Sully did get used to her — through structured introductions, using the methods I’d learned for dogs with stranger danger. He snapped a few times at the start. Then that was it. He knew her. Around me, he got genuinely good at holding himself together.
Six months to a shared room
Echo was the harder problem. It took six or seven months before the two of them could be fully loose together.
We built it in inches. Introductions through heavy outdoor gates. Gates up inside. Crate and rotate, every day, for months. The small supervised sessions with tools present went well — but Sully had learned something early, playing with a sibling, that I couldn’t simply erase: that rough means it’s time to fight. Play would tip, and the reactivity would come straight up through it.
What changed him wasn’t management. It was trusting myself enough to let him react at something — to see his potential, good and bad, honestly — and then show him a better option in the moment. That is where the real work happens, and it is the part people skip because it’s frightening.
Slowly, he learned to redirect himself. His threshold came up. He could be out with Echo. He could play, and — harder — he could learn what it means to stop playing. He could be alert, and police the yard, and then take the cue to shut off and settle in the house. For a dog built like Sully, that last one is enormous.
The hurdle I couldn’t train
While Sully was getting better with Echo, my next hurdle turned out not to be a dog at all.
A family member simply did not want to try with him. The few times they did, the body language they brought toward him was threatening — unintentionally, and consistently. Dogs read intent long before we say a word, and Sully read it perfectly every time. I was willing to go slow, to walk them through it. But the interactions kept sliding, and the restriction Sully had to live under got worse to compensate.
So I moved. I finally got my own place.
When you’re battling your own struggles, it’s amazing how much your dog’s struggles can make you actually do something about it. He got me out of that camper. He got me into a house. I was rebuilding my hand, my nerve, and my life, and the thing that moved me was a seven-month-old dog nobody else wanted.
From the early years to the later years — and it was never a long enough stretch of time — he showed change. Real change.
He started out lunging at anyone nearby. The moment he left the house or got into a car, the fear had to go somewhere, and it went onto us: he would redirect onto me and my mom, snapping and growling at the people right beside him. That is what redirection is. It isn’t betrayal and it isn’t him turning on you. It is a dog so far over his threshold that he cannot aim it at what actually frightens him, so it lands on whoever is closest. Usually the person who loves him most.
He ended up coexisting with structure around other dogs, cats, and fosters, and meeting selected new people safely. He learned to enjoy the car. We built a handler relationship that gave him security and trust — he knew that when he was with me, he didn’t have to make every decision himself. And his obedience became fabulous.
I trained at the vet’s office on purpose, over and over, with very little pressure, until it became a pattern and then a positive association. He became a favorite there, and he was always safe to handle while I assisted.
His obedience and his response time were fantastic. That was never the problem. This is the part people misunderstand about behavior work: a dog can know every cue you have ever taught him and still not be safe, because obedience is a skill and emotion is a state. Sully could hold a down-stay beautifully. What he could not always do was feel safe enough not to need to act. Those are two different jobs, and only one of them can be trained on a leash in a quiet room.
Sully loved his muzzle. He knew it meant an adventure. He went camping. He ran free in the woods. He loved to learn. He also lived at a very high state of arousal, all the time.
I was at work the day Sully attacked Echo, my dog before him and my mascot. My mom was letting them out. Sully had carried a bowl outside, the excitement of seeing Grandma was high, and the triggers stacked. Excitement turns as fast as anything else once a dog crosses his threshold. It ended in an emergency vet visit and five staples. What shook me was how far he went. Scuffles had happened before — minor fights, mostly back in the early days, the kind you correct and move on from. This was not that. He pinned her, took her by the neck, and shook her.
I reintroduced them slowly, always supervised. But Echo shut down, and started to become reactive herself.
About a week later, family came to visit. I rotated Sully away from them — he and the visitors were never loose in the same space, and he only came out while they were settled somewhere else. A rotation is only ever as strong as the communication holding it up. Everyone has to say where they are and where they are going, every time, because the whole system rests on two people never being wrong about the same door. I stressed how much the communication mattered. And I saw how miscommunication can cost a life.
I brought Sully in from outside, because my brother was supposed to be out. My brother walked through the door at the same moment we did. Sully went straight for his face. That was a hospital visit and stitches. He listened to me and got off. The damage was already done.
It was not a lapse in Sully’s management. It was a lapse in mine. Two people, one door, one second of not knowing where the other was. That is all it takes, and it is why I am so exacting now about the boring part of this work: the protocol, the who-is-where, the confirmation out loud before a door opens. People hear that and think I am being intense. I am being intense on purpose.
Two days after that, he killed three squirrels. He’d always had prey drive and had never caught anything. He’d always been stranger-aggressive. There had been contact early on, while I was still learning the extent of what this puppy actually was — but he had never bitten and caused serious damage, and never regularly. In a matter of weeks, he came apart.
Sully needed to be put down. It is the hardest decision I have ever made and it still haunts me. I didn’t make it alone. I consulted other behaviorists. Given the danger, and how fast he was progressing, I couldn’t risk putting another person where I had been, or leaving Sully in a life where he felt unsafe and acted on it, or keeping my own animals under that much stress.
I still wonder whether he’d have gone further if I had been further along in my own healing, or if either of us had had more resources at the start. It breaks my heart.
Sully is why I’m exacting about assessment, about muzzle conditioning, about thresholds and trigger stacking, and about telling an owner the truth when a dog needs more than I can give. He is also why I would rather meet your dog at six months than at six years.
In memory
Sully
The dog who made me a better trainer than any course ever could.
He ran free in the woods. He got to be a dog.
