Depends how we define interact. If I’m walking down a sidewalk, and you and your dog are walking the other way, and I have to adjust my path to avoid your barking dog on its leash, that is me interacting. If we are both in a park, and your dog is parking and jumping at the end of the leash like it’s trying to get away from the leash to come say hi to me, that takes my attention as I have to consider can you hold the dog (many dog owners can’t and the dog and leash go running) so that in my book is interacting, even if you have control, when a dog is going nuts a stranger has no idea you have control.