[Sheffield, England; May 3. Image via Getty]

Referee Michaela Tabb places the cue ball during the World Championship Snooker final between Scotland's John Higgins and Britains Shaun Murphy at the Crucible Theatre in Sheffield, England, on May 3, 2009. Michaela Tabb is the first woman to referee a World snooker championship final. AFP PHOTO/Andrew YATES (Photo credit should read ANDREW YATES/AFP/Getty Images)