Best way to stop a bad man with a gun? A good man with a gun.
Problem: that's two guys with guns.
Reminds me of a scene from the movie "Witness":
While police detective recovers in barn, little Amish boy notices detective's gun, picks it up. He's confronted by his grandfather.
Grandfather asks the boy "would you shoot this gun at a man?"
Boy: "I would only shoot the
bad man."
Grandfather: "
You can see into that man's
heart??
That's it right there. Don't you know that everybody who has a gun considers himself the good man?