In my lifetime I have been bitten three times. Once by an alsatian as a kid, once by a rottweiller as a teen and also by a jack russel (the bugger bit me on the ass). I have spent alot of time around many staffies (going back a few decades they didnt have the fearsome rep they have now) and have never seen one turn. I do however know that they are a potentially dangerous dog because of their strength and tenacity. In the wrong hands they, and many other breeds, can be lethal. Its a terrible shame and it will carry on until laws are in place to deal with both dog and owner when these tragic events occur.