Forty years ago today, Ozzy Osbourne bit the head off a bat during a show in Des Moines on his Diary Of A Madman tour. As the story goes, a teenager apparently smuggled a dead bat into Osbourne’s show on January 20, 1982 and threw it on stage. Osbourne then proceeded to take a bite from its neck. Per The Des Moines Register, Osbourne later said that after the show he had to have rabies shots administered on the road for the next three weeks.