I think it should be illegal to have one. Why would anyone take the risk? I worked with a nurse once, who always talked up her “gentle as a baby” pit bull. I saw her a few months later, and she was talking about her wonderful Doberman, who she had trained to “smile” for an Oreo. “What about your pit bull?”, I asked her. “That thing?”, she said. “Oh, I shot it! It tried to attack me!”
Wow!