Reminds me: We once got in trouble during a development project when one of our error screens displayed a picture of El Chupacabra with some spanish text, translated as "You have been p0wd by the Goat Sucker! Bow down before the Goat Sucker. Contact technical support for assistance."
It was an internal joke, but made it into the final build the customer received. Oops. They were not amused.
BTW, love your animated kitty avatar!