Check out this story about a clerk with six black belts who karate kicked a would-be robber right out of his store (literally). Then he whipped out his cell phone and took a picture of the guy's license plate. Be sure to watch the video. My favourite quotes: "I didn't want to hurt him, but he made me", and "I have enough experience to handle you, and I have to use it."
It's nice to see that action heroes exist in real life, one-liners and all.