El Colacho: the Baby-Jumping Festival (Spain)

In celebration of the Catholic festival of Corpus Christi, grown men leap over newborns, with full parental consent. Donning scary, vaguely Elvis-like costumes and wielding whips and truncheons, the men attempt to “cleanse” the babies of evil. Evidently, recklessly leaping over them is the best way to achieve this. The town has observed the strange practice (called El Colacho) since 1620, and any onlookers who seem to be in need of a quick exorcism are pulled into the event, as well — so look normal, by God! And leave your babies with the sitter.