I know that this is probably horrible to a lot of people. I don't find it cool myself. But as hard as it might be to admit this, some dogs are just aggresive. Some people think that dogs are just angels and would never harm you. But the case has been proven SO many times that they are not always harmless and even the ones that we raise from puppies. Pit bulls, bull mastiffs, and rottweilers and such are sometimes very aggressive. Not because they have something wrong with their brain but because they are aggressive. Pit bulls have been used for dog fighting SO many times. Pit bulls are the most common breed for dog fighting because they are strong, large, and aggressive as well. One of my oldest brothers got his face almost ripped off by a pitbull that was so spoiled all of it's life that I thought it had it's own secret castle somewhere. So I've made my point.