What I don't understand is why people seem to think they can domesticate higher primates. Man has been trying to domesticate his own species for thousands of years. If it worked we wouldn't have crazed crack heads running the streets, and overcrowded prisons.
What makes these people think they can domesticate a tool using primate that is more powerful, less intelligent, and foreign enough that we can't understand how they think, much less know what they are thinking.
I think chimps are great animals, and like elephants and dolphins, should be left alone in their natural habitat.
As far as how to stop one, I'd want the heaviest caliber I could get, and armor plated underwear. Male chimps are known for emasculating their victims if they get the chance. It's no accident when they bite their victim's testicles off!