Bad owners or Ignorant owners can mess up any breed of dog... when its a Chihauha or a tiny Pom people laugh.... when its a big powerful breed its not so funny...
I've seen some pretty sweet Pitty's, we had a Blue brindle puppy come in the otherday, Gorgeous and he was an excellent dog to work on, nothing bothered him at all, he was calm and relaxed for everything even toenails and drying!! he just sat patiently like he'd done this thousands of times before! he's only 4 months old, i wish all the dogs we work with were as relaxed as he was
he liked having us gush over him too... he's going to be a great dog