I've had 4...and the ONLY aggression I have say from them was toward genuine threat. Occaisionally against each other to establish status and place...but they usually won't even hurt each other. Does sound like total war though
However, in real confrontation they can be extremely danger...the absolute fast agressor on the planet. Determine to kill or be killed. Fearless. They will keep coming when hurt and they are lethal.
Still, they don't make the dog-bite threads.
Now, the balance of the universe has been restored.
.....:)