I read a story a few years ago (from Germany I think), where a perp approached a man and woman and shot the man in the face. On the way to the man's face, the bullet hit his wife's cheek, then went through one side of his jaw and didn't exit. The man had no idea what just happened, but DID know that he had some VERY hot metal in his mouth, so he immediately spit out the bullet. The gunman, after seeing a man he just shot in the face, spit the bullet onto the street, turned and ran away.