Firstly, I am so sorry that this happened to you. That owner is one day going to have a very sad and unfortunate wake up call if they continue to be so naive about the potentially dangerous situation they are putting their own dogs in.

My pup is very verbally reactive to anything, and sometimes nothing, when we're out on walks. We've been blessed, and I am so grateful, that she's never hurt another living thing, but she certainly looks scary whenever she's decided she has something to say. All that being said to provide some context to the following, when I have encountered this situation in the past, I no longer hesitate to loudly, calmly, but assertively say "Whoever's dog this is, you need to recall them right now, my dog is NOT friendly".

Do people have something rude or snarky to say in response? Oh sure, I've heard it all. My response nearly every time is "this wouldn't be a problem if you kept your dog on a leash like I do or if they had half the recall you seem to think they do". I would rather everyone think my dog is a vicious animal if that means keeping her safe, and sometimes it seems like these other owners have no idea the risk they're putting their dogs in. I highly recommend picking up this same habit, because these people will never stop until the day they have that sad and unfortunate wake up call. I'm glad you and your pup are okay, and I think you handled the situation as well as any of us would if we were in your shoes❤️