I’ve never had one that I knew the history on or had it as a puppy. Closest thing I have to a “pit bull” is a stray that showed up a couple years ago. He is some type of bulldog mix and has some issues. I think he has some type of seizures or disorder. Once in a while he turns into the most vicious looking dog I have ever seen and resembles a cornered cat. After about 5 secs he shakes his head hard and comes up like any other dog to try to like your hands/arms off.