Originally Posted by LadyMischief

Any working breed or hunting breed of dog has a higher tendancy to be aggressive, but ONLY because they generally aren't given the amount of exercise they need to bring peace to their minds. You can't take an athlete and lock him up in a box and expect him not to go a little hairy, and when a dog is bored or unfulfilled, their most base instincts tend to take over. Pit Bulls, Rottweilers, German Shepherds, many of these working-class dogs are owned by people who are not capable of properly meeting their needs as dogs. They treat them like people or babies, and that is a terrible thing to do with a powerful animal.