A co-worker just told me about a prank he played on his brother. Apparently they used to exchange pranks back and forth while growing up. His best: He saved up toe nail clippings for two years. He dumped them in his bro's large glass of milk. Of course his brother eventually made it to the bottom of the glass and you can imagine the rest... Any other bizzare, just-plain-wrong, but hilarious pranks out there?