SLIPKNOT percussionist Shawn "Clown" Crahan has been forced to leave the band's Canadian tour due to what singer Corey Taylor has described as "a very terrible, terrible predicament going on in [Crahan's] family".Fan-filmed video footage of Taylor addressing Clown absence during the band's May 1, 2009 concert in Toronto, Ontario can be viewed below. Crahan previously missed several SLIPKNOT shows because his wife is ill with Crohn's disease. In a 2005 interview with the Des Moines Register, Crahan spoke about his wife's illness. He said, "Right now has definitely been the hardest time in my life...health is the most important thing you have on this planet if you're gonna have a successful life." Crahan added that balancing family and band responsibilities has been one of his goals throughout his career: "That's the thing I fight for most in this biz, is family. I've been married 12 years, and my wife has let me do SLIPKNOT for 10...Family can and is being incorporated into rock 'n' roll. You can have a wife, you can have a child or children and be a rock 'n' roller."