During a show at the Mirage on Horn's birthday on October 3, 2003, a 7-year-old white tiger named Montecore attacked Horn. As part of the act, but veering off script, Horn held his microphone to Montecore's mouth and told him to say "hello" to the audience. Montecore responded by biting Horn's sleeve. Horn swatted the tiger and barked "release!". Suffering from dizziness, Horn tripped and fell onto his back, and Montecore moved to stand over him.