I never said a pit is undesirable, just not suited for a situation normally. The greyhound is the fastest dog. It also holds the high jump record. I never said your J/R had razors edge, just that it is bred to it a bit. At least around here. No, but Chinaman dogs are excitable biters and have put their teeth on humans (though not all of them). If encouraged, you can even get a lab to bite and put on a display at the fence or car door. However it is not its nature or why I would buy one... I have rescued, worked on, trained and been around numerous pits of all sorts. All kinds from the early big bully stuff, to the new bully stuff, to game bred dogs, to street stuff, to southern hog dog stuff. Yes, Pits are great dogs, no one said otherwise.