Police in Round Rock, Texas were stumped by the 49 emergency calls that came in from an unregistered cellphone on Nov. 14, 2006. The caller would say nothing, or giggle briefly, and hang up.
Eventually the cops found the perpetrator -- a 7-year-old calling from school. "He was just doing it for fun," said police spokesman Eric Poteet.
The phone had been deactivated and could call only 911. Dispatchers used cellphone towers to determine its approximate location.
During one call, dispatchers heard classroom chatter in the background and decided to check the elementary school. Once they found the boy, the officers confiscated the phone and called his parents. Although making silent or abusive calls to 911 is punishable by up to 180 days in jail and a $2,000 fine, the boy was not charged because of his age. (info from The Associated Press)