This joke was originally posted on the Eärwan Jokes thread. Imho, it's just too good to languish in obscurity on that thread, so......
A cop on the beat happens upon a Nonman beating the utter crap out of some guy. The cop shouts, "Hey, what the hell you doing beating the crap outta that guy?" The Nonman stops, turns to the cop and says, "Sorry, officer, but I'm just trying to remember where I parked my car."