My experience with people who own pit bulls is that they have attitude problems, and excuse pit's behavior with "It's not the pit; it's the owner." I have never believed that. My nephew is watching a pit bull that has bitten two kids. Not bad, more like a nip, but enough to put the dog down. The dog is nice around my nephew. I handed my nephew some money, the dog leaped out of his lap, up in the air, and bit my right bicep. I now have a round bruise there, along with two punctures. The dog has had his shots, fortunately.
I will post a photo tomorrow, after the bruise has turned nice and black.