In 1981, after signing his first solo career record deal, Osbourne bit the head off a dove during a meeting with CBS
Records executives in Los Angeles. Apparently he had planned to release doves into the air as a sign of peace, but due to being intoxicated at the time, he instead grabbed a dove and bit its head off. He then spat the head out, with blood still dripping from his lips.
On 20 January 1982, Osbourne bit the head off a bat he thought was rubber while performing at the Veterans Memorial Auditorium in Des Moines, Iowa. According to Osbourne in the booklet to the 2002 edition of Diary of a Madman, the bat was not only alive but managed to bite him.