Sanity Killer

You jump onto Elmo and begin pummeling him with your fists. However, as Elmo feels no pain, he thinks it is a game and pummels you back. The little furry hands do no damage. Until something in his mind clicks and he realizes your intention, then takes out his gun and proceeds to do a new game- put bullets in the new threat. A policeman walks by and witnesses the sight, but dismisses it as a case of bad doughnuts.