Well I don't like to run into *any* unleashed dogs anywhere, especially if I'm walking my dogs. I know Reggie tends to make other dogs aggressive, so I always end up having to pick him up and hurry off (which he is a big schnauzer and kicks like a rabbit). It's hard to know if the dog is friendly or not. But you really cant judge the dog as mean just because it's a pit bull. Actually every pit I have met has been friendly. I wish some breeds didn't have such a bad reputation. It is the owner that creates a mean dog! Anyway, I hope that the owner comes and picks him up...and did not abandon the poor dog.