Pitts don’t seem to play by the established canine rules. The fighting breeds just go off some times without warning.
I believe all defined dog breeds were established by selective breeding, for looks, temperament, intelligence, tenacity, and so on. (Puppies with the desired traits were bred with like puppies, whereas those without were put down). Pit bulls were bred for aggression. While dogs will seldom be as aggressive as tigers or lions, no matter what the breed, anyone who has a pit bull for a pet (as opposed to a working dog) is taking a risk.
But he was a good dog. He was just turning his life around. He was in the church choir, was fostering some puppies and had applied to attend obedience school next year.
I've heard that dogs view people as funny-looking alpha dogs. And dogs bite each other all the time while roughhousing. That's why it's always a risk to leave a dog alone with a small child, let alone a pit bull.
Dogs like humans can just go off sometimes. Mine (dog, not human) gave me a bite on the hand the other day after doing what she knows is not allowed and me trying to correct her behavior. I have no problems saying she does that again its lights out for her. I will not risk my household let alone my neighbors if she just went all miley cyrus.
All dogs do. I’ve seen little kids bitten by everything from Pit Bulls to Beagles. You have be very careful with any little kid and a dog. They just don’t recognize the warning signs the dog is trying to give them.