I walk my dog alot. And hes a big dog. And hes good on a leash. I can handle him really good. But i get scared when he sees another dog. He doesnt bark at all. But the other dogs bark at him. Making my dog run. He rips the leash out of my hands and runs toward the dogs. But he never hurts the dogs. But the dogs always hurt him. How do i control him so me and my dog dont get hurt?