A huge guy walks into a bar, approaches a little guy and karate chops him in the back. When the little guy gets up, the huge guy says, "That was a karate chop from Korea."
A little later, the huge guy walks back over to the little guy and karate chops him in the back. The huge guy says, "That was a karate chop from China."
The little guy leaves the bar, comes back and hits the huge guy on the back. The huge guy lies unconscious on the floor. The little guy tells the bartender, "Tell him that was a crowbar from Sears."