Bully breeds are excellent family dogs because, contrary to popular (uneducated) belief, they are among the gentlest dogs on the planet, but their appearance is extremely intimidating, and they have a loud, deep bark. A bully type dog that spends enough time with its owner can become to attuned to its owners body language that it can almost read their minds. There have been several well-documented incidents of unusually friendly, sociable, easy-going dogs suddenly turning incredibly violent when "their person" was being threatened, and then calming down just as quickly once the threat had been neutralized. I don't think I know of anyone with an Am.Staff or a boxer who would worry about leaving them alone with kids either... Some of them are better parents than the actual parents...