Actually, dogs that are bred to fight are very specifically bred not to be aggressive towards humans. The owners have to be able to step in and break up the fight without being attacked, so any dog that shows human aggression is immediately killed, along with all of its litter and parents. I don't have the statistics about labs bookmarked, and I'm not at home, so I'll have to find it later. On the subject though, part of the problem with bite statistics is that any mutt dog that bites tends to be labeled as a pit, whether or not it has any pit blood. All sorts of bulldogs, boxers, basically any dog with short ears and a big square head gets labeled as a pit as well. I've seen hounds get labeled as pit bulls when they're aggressive. As for dogs that are bred to fight being so dangerous, try googling where Michael Vick's dogs are now. IIRC, one had to be put down for aggression. The other 40-some are happy, healthy family pets. Some of them are therapy dogs, quite a few have their canine good citizen certification. If anything, it's a testament to this breed's forgiving, happy-go-lucky nature that so few of them ARE dangerous, considering the disgusting way we've treated them.