A man owns two male pit bulls that have not been neutered. He tells a friend that he intends on leaving them unattended in his fenced in back yard while he is at work. His friend says "Wouldn't you think the dogs would fight to the death because of male aggression and because they are pit bulls?" The man says that he has been keeping them in the back yard together for years while he goes to work and they are both still alive and he has never seen any injuries on them. His friend says that's simply because the fence is protecting them from wild animals and asks him again, "Wouldn't you think the dogs would kill each other because of male aggression and because they are pit bulls?"