Ok, before my disorganized rambling begins, please tell me how many tries you need before getting it right:
http://www.pitbullsontheweb.com/petbull/findpit.html The first time I saw this site, I got it on my second guess. I was guessing because I didn't know for sure. I consider
http://members.aol.com/radogz/find.html to be cheating a bit since AmStaffs and APBTs are so closely related that some dogs are dual registered. And keep in mind that most humans are probably more ignorant than I am.
Most of you people don't know anything about real dogs. Media pit bull myths? Try Disney dog myths. Don't blame your lack of dog-caring skills on genes or dominance. Puppies are not blank slates. Dogs are not bound by genetic determinism. Taking a puppy away from hir mother and littermates too early is no guarantee of safe personality--it's not a guarantee of anything else, but it does deprive hir of many important things that are best fulfilled in an early family (as in dam and siblings) environment. Dog-dog aggression is not the same as aggression against humans. Many people can't tell a bully breed from a lab, much less an AmStaff from an APBT (some dogs are dual registered, fun). If a certain type of person, less than 4% of the population, likes to run people over with cars, and they like to drive red cars, we really ought to ban red cars which will stop 22% of all cases of people being run over by cars. It is not inevitable that dogs dislike having their paws handled. Virtually all dogs are capable of biting. (Those who are not are freaks, like humans incapable of being violent, even if threatened with torture of their children or whatever.) Most people think that some dogs bite "without provocation" but they just don't see the provocation as provocation because it wouldn't provoke them (the humans) even though it provokes the dogs.
John always seemed like a friendly guy. Then one day he strangled another human, Joe, without provocation! All that happened was that Joe waved a gun around and threatened to shoot everyone in sight. I don't understand why John snapped. It must be genetic, since I don't see anything else that could have caused John to pry the gun away and strangle Joe. I always thought humans were nice unless they were trained otherwise. John proved me wrong.
As for "no warning," my friend worked with her first truly human-aggressive dog (if he was a pit mix, it didn't really show, he didn't have pit head, legs, etc) years ago and she understood very well if he gave the eye warning. Would the average pet owner or reporter? Probably not.
crazywiggy made a good point about growling. I truly LOVE when dogs feel free to stare, freeze, lick their lips, look away, move their ears, growl, snarl, and snap. These are like the humans who look uncomfortable, then say "hey, this makes me feel bad," etc. The ones who, for whatever reason, don't do these and go straight to biting are more dangerous because of this. These are like the humans who suppress themselves at all costs, and maybe their smile looks a little forced, before they erupt with uninhibited physical violence.
Some dogs are great with other dogs but not humans or cats. Some dogs are great with all animals under 80 lbs or so but not anyone else. Some dogs are great with humans and rabbits but no other species. Guess what? Dogs aren't children.
Oh also wanted to point out that you have to decide what sort of group your samples are representing. Dogs who are temperament tested are generally not representative of the entire breed.
I'm on the fence about BSL now, because maybe some people won't bother switching to another breed or going underground. Maybe a few less puppies will be bred. Or maybe not. But there should always always be a grandfather clause.