This very un-PC story made my day:
An octagenerian retired Special Forces member was put on trial by his peers for shooting an intruder in his home who'd threatened him with a knife. Unfortunately he used a 22 caliber handgun, so he was charged with "failing to use a weapon of sufficient caliber."
It was all tongue in cheek - he was acquitted with a round of applause from the room.
HT: Neal Boortz.