So we know J. Kb’s stance on Pit Bulls and I am a firm believer that is the people who are too effing dumb to own dogs, here is a video showing what happens when you do not take dogs seriously.
If anything, this reinforces my belief that people get dogs as accessories to their lives and not because they need them as working animal and sure as heck do not know how to control them. Can a dog go crazy and attack its owner? yes. It has happened due to sickness or mistreatment or simply the dog is not right upstairs. We were given a German Shepherd that never took training, would not patrol and eventually came to ambush our other dogs for no good reason. One night he tried to attack me as I was walking by, but the body language betrayed him and received several good kicks for his attempt to harm me. The next day I took him to the vet and put him to sleep as I could not take the chance to have him injure a member of my family.
A dog is not your baby, is not your kid, is not a human member of your family: It is an animal that, as much as you can love, comes second to a human life. With the exception of the shepherd mentioned above, I have suffered every dog that has died in our family, but that ever meant the next one was going to be treated any different.
If you own a dog, specially a big dog and you have not considered the possibility that you may have to get physical and even kill it, you are better off getting one of them miniature dogs or better yet, a cat.