If you think Tony Iommi is the only Black Sabbath member who chopped his fingers off while on the job, you'd be incorrect. Frontman Ozzy Osbourne actually chopped off the end of his thumb at the age of 15 while working as a plumber's assistant. But that's not the only crappy job metal's 'Prince of Darkness' worked in his early years -- Ozzy also once landed a gig at a British slaughterhouse.

Bringing new meaning to "mad cow disease," Ozzy worked in the slaughterhouse for two years, reportedly killing cows. The legendary Sabbath frontman is now a vegetarian.