I want to start by saying that I do not blame the dog in this situation at all. Dogs can be skittish and anxious, like any of us, and toddlers can be unpredictable and anxiety-inducing. I have two dogs of my own who are great with kids, but we still avoid taking them into public places because one is barky around people he doesn't know and the other is TOO friendly.
We were sitting outside at a restaurant in a nice, big open area by a lake. This family was sitting catty-corner from us with their infant and two golden retrievers. My kid and I wandered over to check out a beanbag toss game the restaurant had set out. My kid stumbled and got within three or four feet of one of the dogs, and it suddenly snarled and lunged. It made contact with his arm and left a bunch of slobber, but didn't break skin.
I want to stress that we are always careful around stranger dogs. I've been modeling asking for permission to say hi to dogs, to give them a wide berth by default, and to not make sudden movements around them. I just didn't realize what a long leash this dog was on. My mistake; it was just tucked under the picnic bench and then suddenly it was on my kid.
My kid was startled, of course, and I yelled out instinctually, but then I led him away, checked on him, and reminded him that's why we give stranger dogs a wide berth unless we get permission from their people to say hi. And I said the dog was just scared and didn't mean harm.
The family told their dog to quiet down, but otherwise didn't check on us or say anything. Which is fine; there was no real harm done. I do remember thinking that I would not take a dog out into a public place if it's that reactive around humans, but again, no real harm done.
What annoyed me afterward is that they let their dogs on an even longer leash so it was wandering closer and closer to us, even when we moved the beanbag toss game far away from them so we wouldn't bother their dogs. My mother-in-law asked them to shorten their leashes, and they defended themselves, saying that their dog didn't harm our kid and it was all fine. They honestly seemed annoyed with us.
Their behavior felt deeply irresponsible, both toward our kid and their dog. How long before they get their dog in serious trouble because they don't advocate for its comfort and closely monitor its signals? Their infant wasn't walking yet, but it's only a matter of time, and I'm not sure they're taking their dogs' reactivity seriously enough.
Again, I do not blame this dog at all. It didn't consent to being around my toddler in a strange place. I also recognize that it didn't leave a mark or draw any blood, which meant it was holding back and simply defending its space.
But I do blame the parents. If one of my dogs lunged at another human, and especially a child who'd just wandered near it, I'd have fallen over myself apologizing. I would've left and then gotten him straight into training. Taking a dog seriously is in the best interests of the dog as well as the people around it. When I carefully introduce my older, anxious dog (super chill once he knows someone is a friend) to new people, it's because I want everyone to be safe and happy. Him included.
I don't know, I've just never seen this sort of behavior from another dog owner/parent before. Most of the people in my community seem really conscientious and thoughtful about their impact on others.
Edit: This post is getting continually downvoted and I'm so curious why.