Bob, a seasoned prankster, decided to play a harmless prank on his neighbor, Mrs. Johnson. He inflated a unicorn, tied it to a tree in her front yard, and left a fake "Beware of the Beast" sign.
Unbeknownst to Bob, Mrs. Johnson is a skilled taxidermist, and she was not amused. She promptly took apart the inflatable, removed the stuffing, and re-stuffed it with 500 rubber chickens.
Bob was not prepared for this level of revenge, and the incident escalated into an all-out prank war. The neighborhood is still recovering.
Learn from Bob's mistakes: Prank War Etiquette is a must-read for any would-be prankster.
For more on Mrs. Johnson's taxidermy skills, see The Art of the Stuffed Animal.