Are you kidding me? Good for you that you own a dog, but you are an idiot for saying that pitbulls are bred to be violent. That is so stereotypical and you are the main reason Pits have the reputation they have. My Pit is the sweetest most loving dog in the world and would rather kiss you to death that ever put her teeth on you......And yes my pit would just walk up to anyone, probably jump and kiss on them. Not viciously attack.
My neighbor has a little rat terrier and that dog is far more vicious than any violent bully dog. She growls and bites anyone who comes near her. So it isnt just the breed.
So please stop being so stereotypical and stop giving good dogs bad names.