This Started with Remi.
Remi is a German Shepherd / Husky mix. He's fast, he's smart, and the moment he's on a leash and another dog appears around the corner — or a stranger moves too quickly toward him — he loses his mind.
Not in a dangerous way. In the way that every reactive dog owner knows exactly. The lunge. The bark. The pulling. The whole walk suddenly becomes about managing him instead of exercising him. You spend 30 minutes outside and come home more stressed than when you left. So does he.
Remi wasn't getting what he needed. And I knew it. Not as a guess — as someone who has spent years working with dogs in situations where getting it wrong had real consequences.
I've Been Around Dogs My Whole Life. Not the easy kind.
I've fostered, rehomed, and rescued dogs — the ones nobody else wanted to take on, the ones with histories, the ones that arrived broken in one way or another and needed someone willing to put in the work.
I've worked with military-trained protection and detection dogs. Dogs that have been through intensive drive-building programs and come out the other side wound tight, physically capable, and demanding in a way that most pet owners never encounter. Dogs that need an outlet that matches what they were built for.
I spent time in Brazil working with street dogs — animals that had never known a safe environment, had learned to survive through wariness and reactivity, and required a completely different approach to trust than anything you'd find in a textbook.
None of this makes me a trainer or a vet. What it gives me is context. I've handled dogs across a wide spectrum of backgrounds, drives, and trauma histories. I know what a high-drive dog looks like when it's not getting enough. I know what a reactive dog looks like when it's managing rather than living. And I know the difference between a dog that's dangerous and a dog that's frustrated.
Remi is the latter. He always has been.
The Problem with Reactive Dogs Isn't the Reactivity.
It's that reactive dogs can't go anywhere.
Off-leash parks are out. Most of them are a minefield of loose dogs running at you without warning. One bad encounter sets the training back weeks.
Group dog walks are out. You're the person at the back with the dog who won't stop barking.
Doggy daycare is out. You'd be spending money to give your dog an experience that genuinely stresses them out.
So what's left? A walk around the block where every other dog, every jogger, every cyclist is a trigger event. A walk that exercises neither of you because you're both on high alert the whole time.
For a GSD/Husky cross — a dog that was literally bred to work, bred to run, bred to have a job — this is a slow-burn problem. An under-exercised, under-fulfilled reactive dog doesn't get better. They get more reactive. More restless. Harder to train.
I've seen it with military dogs that retired without a structured outlet. I've seen it with street dogs in Brazil who couldn't decompress because they were always in survival mode. I've seen it with Remi on a Tuesday morning in January when it's -28°C and the sidewalks are icy, and we're both standing in the driveway wondering what to do.
The problem is always the same: the dog has energy, nowhere to put it, and everything gets harder from there.
What a Slat Mill Actually Does.
A slat mill is a non-motorized, dog-powered treadmill. The dog runs it — not a motor, not you. They control the pace. They can slow down, speed up, or stop whenever they want. There's no forced movement.
What it does is simple: it drains the physical battery in a controlled, distraction-free environment. No other dogs. No strangers. No triggers. Just the dog, the movement, and the handler watching.
Here's what nobody tells you about high-drive reactive dogs specifically — and I learned this not from a book but from watching it happen with working dogs before I ever owned Remi: the reactivity is often fuelled by excess energy. A dog who is genuinely, physically tired is not the same dog you were trying to walk an hour ago. Their threshold goes up. Triggers that would have set them off don't land the same way.
In dog training, this is called working under threshold. You can't train a dog who is over threshold. You're just managing a crisis. But a dog who has run two kilometres on a slat mill before a training session? That dog can actually learn. That dog can focus. That dog is reachable.
Military and sport dog handlers have known this for decades — run the dog before the work. Physical output creates mental availability. The slat mill isn't a replacement for training. It's what makes training possible.
Why I Built the Van.
I run a martial arts academy in Calgary. I teach around 13 classes a week for 6 years — toddlers through adults. The thing I've learned from coaching is that physical work creates mental space. You can't think your way through a hard problem when your body still has energy to burn. You have to move first.
That's true for people. It's more true for dogs. And it's most true for high-drive reactive dogs who have been bred across generations to run, work, and think — and who are now living in a Beltline condo with nowhere to put any of it.
I knew what Remi needed. I'd known what dogs like him needed long before he came into my life. What I didn't have was a way to get it to him — not without the parking lot, the lobby, the other dogs in the waiting room, the whole gauntlet that defeats the purpose before you even start.
So the answer was obvious, even if the execution took a while: bring the mill to the dog. In a van. At the driveway. One dog at a time. Zero exposure. Zero triggers. Just the run.
That's Running Remi.
What We Actually Do.
The van pulls up to your driveway. We knock on the door. Your dog gets a 30-minute private run on a professional slat mill in a climate-controlled van — warm in winter, ventilated in summer. The handler is there the whole time. Your dog never sees another dog. You don't have to go anywhere.
We rinse road salt off their paws before they board. It's toxic if ingested, and it matters, especially in a Calgary winter.
Afterwards, you get a session report card by email. Distance, energy score, what we noticed, anything worth flagging. You can share it with your vet, your trainer, or just use it to track progress over time.
That's the whole thing. Simple, private, and designed around what actually works.
Who This is For.
Reactive Dogs.
If your dog loses it on leash around other dogs or fast-moving strangers, you need exercise that doesn't involve other dogs or fast-moving strangers. The van is a zero-trigger environment. One dog. One handler. Your driveway.
Condo and Apartment Dogs.
High-drive dogs in small spaces without yards. Beltline, Kensington, Bridgeland, Mission. The van comes to your building. Thirty minutes and they're done.
Post-surgery and Senior Dogs.
Your vet has told you to keep them moving, but keep it controlled. The slat mill is dog-powered and dog-paced. We can share session logs with your clinic.
Sport and Working Dogs.
If you run IPO, canicross, dock diving, or weight pull — a slat mill conditioning block is exactly what handlers at that level already know to do. We just bring it to you.
About Me.
I'm Gato. I run a BJJ program in Calgary. I've been around dogs — seriously around dogs — for most of my adult life.
I've fostered, rehomed, and rescued dogs that other people gave up on. I've worked with military-trained protection and detection dogs — animals at the far end of the drive spectrum that demand a handler who understands what high-drive actually means when it's been deliberately amplified through years of training. I've spent time in Brasil working with street dogs — animals with no history of safety, no baseline of trust, no comfort with human contact — and learned what it takes to reach a dog that has every reason not to let you.
That background didn't make building Running Remi inevitable. But it made it obvious.
Remi is a GSD/Husky mix who is leash-reactive. He's been my clearest teacher in what it means to have the knowledge, the patience, and the intent — and still be stuck on a Tuesday morning in January with a dog who needs to run and nowhere to safely run him.
I'm Canine First Aid certified. I work through BAT 2.0 — Grisha Stewart's Behaviour Adjustment Training methodology — with Remi, and it's the framework that informs how I approach every reactive dog that gets in the van. Remi is on Instagram every week. The progress is documented and unfiltered.
I'm not going to tell you I've seen everything. But I've seen enough to build something that works.
A Note on Calgary Winters.
We operate year-round. But winter is the reason this business exists in Calgary specifically.
When it's -30°C outside and the sidewalks are iced over, and the off-leash parks are buried, your reactive dog still has energy. That energy still needs somewhere to go. The van is heated to 20°C before your dog boards. We rinse road salt off their paws at the door — every time, without exception.
Weather cancellations are free. If a City of Calgary snow emergency is declared, we reschedule. No penalty.
But most days — most very cold, very dark, very miserable Calgary winter days — we show up.