 But if he's in a setting with other dogs like a daycare or if I take him once every couple of weeks, he's fine. He doesn't bother the other dogs. Yeah, that's because once you restrain a dog, the protective instincts come to play. For example, when he sees another dog walking on the street and you hold him back or pull him back, you're actually causing that response. If you really want to resolve it, the way to resolve it is when you're walking him.