We’ve all been there. You’re enjoying a peaceful walk with your dog when a neighbor or a stranger approaches, their dog straining at the end of the leash. Before you can even assess the situation, they shout those four famous words: “It’s okay, he’s friendly!”

While these people are almost always well-intentioned, this phrase is one of my least favorites to hear as a behaviorist. Why? Because every single experience your dog has on a leash leaves a lasting impression. Whether that impression is positive, neutral, or traumatic depends entirely on how we handle these “friendly” encounters.

The Science of the “Teenage” Dog Brain

To understand why these spontaneous greetings can go south, we have to look at neurobiology.

When dogs are puppies, their brains are wired to meet and greet everything. It’s a survival mechanism. However, as they hit adolescence, things change. Their prefrontal cortex—the part of the brain responsible for impulse control and “thinking before acting”—is still under construction.

Think of it like this: I recently had to get a root canal redone. While sitting in the chair, I started to panic. But because I have cognitive control, I could tell myself, “Breathe. Your endodontist is a professional. You’ve done this before.” I talked myself down.

Adolescent dogs lack that cognitive control. They have big emotions but no “brakes.” Their brains tell them to approach, approach, approach, even if they don’t actually have the life skills to handle the interaction once they get there.

The “Approach-Investigate-Panic” Cycle

In my facility, I often see this during “working interviews” for new staff. An adolescent dog will run up to a new person, sniff-sniff-sniff, and then suddenly realize: “Holy crap, I’m really close to a stranger!” Then, they explode. They bark, lunge, or snap.

This happens because the dog’s “approach” instinct overrode their “assessment” instinct. They got themselves into a “pickle” and didn’t know how to get out. When we ignore a dog’s subtle signs of discomfort—like backing up, lip licking, or turning away—we force them to use “granddaddy gestures” (like biting) to get the space they need.

Case Study: Rufus, Linda, and the “Bribe”

I often hear from clients whose dogs “suddenly” started biting. But when we dig deeper, there were always signs. Take “Rufus” and his neighbor “Linda.”

Linda wants to pet Rufus. Rufus backs up (a subtle “no”). The owner gives Linda a treat to “bribe” Rufus to come closer. Rufus takes the treat because he likes chicken, but then Linda reaches over his head to pet him—the very thing he was trying to avoid.

What did Rufus learn?

  1. His owner won’t advocate for him.

  2. Coming close to people results in being touched when he doesn’t want to be.

  3. Next time, he needs to bark from 10 feet away so he doesn’t get “trapped” again.

How to Have Better Encounters

If you want your dog to enjoy their walks, every interaction should leave them wanting more or feeling neutral. Here is how to handle a “Linda” or a “Greg” in your neighborhood:

  • Ditch the Hand-Sniff: Stop telling people to reach their hand out. Dogs can detect cancer; they don’t need to smell your “weird ass hand” to know who you are.

  • The “Treat Toss”: Instead of hand-feeding, have the stranger toss a treat behind the dog. This allows the dog to move away, get the reward, and then choose to re-approach on their own terms.

  • Low Pressure: The less a stranger does, the better. No bending over, no staring, and no forced touching.

The Danger of On-Leash Greetings

When two dogs meet on a leash, they are physically restricted. They can’t use natural curving approaches, and they can’t flee if they feel threatened.

I experienced this with my dog, Rishi. A “friendly” dog barreled toward us, freaked her out, and she was on high alert at that same corner for a week. These “minor” events can create long-term leash reactivity.

Final Thoughts: Be Your Dog’s Advocate

You are not being “mean” or “rude” by saying no to an interaction. I would rather a total stranger think I’m a “bitch” than have my dog lose confidence in me or suffer emotional scarring.

If you’re the one with the friendly dog: Stop and ask, “Is it okay for us to approach?” If you’re the one being approached: Empower yourself to say, “Sorry, we’re not accepting greetings today.”

Your dog’s walk is for them, not for the entertainment of the neighborhood.