It happens on close plays more than you think. Most people aren't looking for it. I can recall during an American Legion tournament, a baserunner intentionally stepped on the first baseman's heel and actually cut his spike. The next time that same kid came to bat, he hit a ground ball to the shortstop. The throw was made to the first baseman who, prior to the arrival of the throw, came off the base, made the catch and slap tagged the base runner in the face. Things went south afterwards.