Ozzy was known by most people as "the singer who bites heads off bats". This rumor traces back to one isolated incident. On January 20, 1982, at a concert in Des Moines, a bat wound up on stage, which had either been stuck in the rafters or thrown up there by a crazed fan. Osbourne bit it for a goof, thinking it was a rubber toy. He had to take a week of rabies shots. Despite a $25,000 donation later that year to the SPCA, the bat story grew to be an urban legend of its own, to the point where even numerous unrelated heavy metal bands were commonly accused of ritualistically killing live animals on stage.