"Why is my dog reactive on walks?”
You leave the house feeling hopeful. Maybe today's walk will be different. Then you spot another dog half a block away and your heart sinks – because you already know what's coming. The lunging. The barking. The frantic, embarrassing scene that has you turning around and dragging your dog home before things escalate.
If this sounds familiar, I want you to hear something straight up: your dog isn't being naughty. They aren't dominant, defiant, or trying to embarrass you. They're overwhelmed. And the more we understand what reactivity actually is, the more we can help them through it.
I'm Amelia – a Delta Institute-certified animal behaviour and training specialist working with dogs and their guardians across Newcastle and the Hunter Valley. Reactivity is one of the most common reasons people reach out to me, and it's also one of the most misunderstood.
Here's what I want you to know.
WHAT REACTIVITY ACTUALLY IS
Reactivity is an emotional response, not a training failure. When a dog reacts – whether by barking, lunging, growling, or freezing – they're communicating that something feels overwhelming. It might be fear. It might be frustration. It might be a build-up of stress from earlier in the day that finally tips over.
What it almost never is, is a dog being "stubborn" or trying to take charge.
Think of it like a person having a panic attack in a crowded shopping centre. Telling them to calm down doesn't work. Punishing them for reacting doesn't work either. What works is understanding what triggered the response and giving their nervous system the time and tools to settle.
Dogs are no different. Their reactivity is a signal – and our job is to listen to it.
COMMON TRIGGERS YOU MIGHT NOT NOTICE
When guardians describe their reactive dog to me, they often focus on the obvious trigger – usually other dogs. But reactivity rarely happens in a vacuum. Some triggers I see often:
Other dogs (particularly approaching head-on, or those that stare)
Strangers, especially men, hi-vis clothing, or people behaving unpredictably
Bicycles, skateboards, joggers, or anything moving fast
Sudden noises – a slammed door, a passing motorbike
Being approached while on lead (lead reactivity is its own specific pattern)
Cumulative stress – a vet visit yesterday, a stressful morning, poor sleep
That last one matters more than people realise. A dog with an "overflowing sink" of stress from earlier in the day will react to things they could normally handle. This is called trigger stacking, and it's why your dog might cope brilliantly one day and fall apart the next.
WHY TRADITIONAL ADVICE OFTEN MAKES IT WORSE
If you've been struggling with reactivity, you've probably heard advice like:
"Just keep walking past – show them there's nothing to worry about."
"You need to be more dominant."
"Use a prong collar to correct the behaviour."
"Tire them out – a tired dog is a good dog."
I understand why this advice gets passed around. But it's almost always wrong, and often actively harmful. Here's why.
When a dog is over their threshold – meaning they're already too overwhelmed to think clearly – pushing them past more triggers doesn't desensitise them. It floods them. The reactive behaviour might temporarily suppress, but the underlying emotion intensifies.
Punishment-based tools like prong or e-collars add pain to an already stressful experience. Your dog learns that seeing another dog leads to pain. That doesn't reduce reactivity – it deepens the negative association.
And exercise alone isn't the answer either. A reactive dog walked five kilometres is still a reactive dog. They might be more physically tired, but their nervous system hasn't been given what it actually needs.
WHAT ACTUALLY HELPS
Real progress with reactivity comes from working below your dog's threshold – that magic point where they notice the trigger but aren't yet overwhelmed by it. That's where learning happens. That's where new associations are built.
The framework I work through with clients usually includes:
Understanding your individual dog's triggers and threshold distance
Building emotional regulation skills at home, before we ever address triggers on walks
Using carefully managed exposure – not avoidance, not flooding
Pairing trigger experiences with genuinely positive associations
Equipping you with the skills to read your dog and adjust in real time
Allowing time. Reactivity didn't appear overnight, and it doesn't resolve overnight either
It's slower than the quick fixes you'll see online. But it's the only path that creates lasting change without damaging the trust between you and your dog.
WHEN TO REACH OUT FOR HELP
If reactivity is affecting your daily life – if you're avoiding walks, dreading the door, or feeling like you've tried everything – it's a good time to bring in support. The longer reactive patterns go unaddressed, the more entrenched they become.
A force-free behaviour trainer can help you identify what's driving your dog's reactions, build a plan that works for your specific situation, and walk alongside you as things start to shift.
At Leash & Learn, our Dog Behaviour Training sessions are designed for exactly this kind of work – held in your home and the environments where your dog actually struggles. We work at your dog's pace, not a one-size-fits-all program.
If you're navigating reactivity and want to talk through what your dog needs, get in touch. Every dog is different, and every plan should be too.
