Aggressive dogs remain such when their life is hard. They only seem very kind. When they learn to care about themselves, the range of behavior variations is not that big. The person needs some patience to train the dog do it. Actually, this is the happiest pet in the world. With a bit of care, one can transform this doggy into very friendly pooch. It becomes then the most peaceful and the happiest animal in the world. If you do not believe in it, you should just try and make sure in it.