They're such ugly dogs, too. When they snap, they have no regard for their own safety; they are relentless. (There's even a name for this trait:
https://en.m.wikipedia.org/wiki/Gameness) They have very muscular jaws and necks and when they bite down, it's not easy to pry their mouths open. There's a device called a break stick that assists with releasing from a pit bull's jaws:
https://www.pbrc.net/breakstick.htmlHow to Break Up a Fight
If one of the dogs has a grip, it’s time to use a break stick.
It is best if there are two people to break up a fight, but you can do it by yourself if you have no choice. If both dogs are fighting and you are alone, you might need to tie one of the dogs to something solid. When one of the dogs is tied up, you must "break" the one that is not tied first, and pull him/her off right away.
Walk over to the dogs, straddle one that has a hold, and then lock your legs around the dog's hips just in front of the hindquarters. Make sure your legs are locked securely around the dog. Your break stick will be in one hand, so with your free hand, grab your dog firmly by his collar and pull upward slightly.
Insert your breaking stick behind the molars where the gap is found. Sometimes you need to work the stick in just a bit if the gap is small. The stick should be inserted from ½ to 1½ inches into the dog's mouth.
Turn the stick as if you're twisting the throttle of a motorcycle. This action will cause the dog to readjust its grip, and it will bite onto the stick, releasing the other dog. If both dogs have a hold, you will then have to break the second dog from the first.
Not every individual dog is aggressive, but when it comes to children, why roll the dice? What baffles me is the propaganda from some people promoting this particular breed as "nanny dogs." It's absolute lunacy.