Revelry goes hand in hand with frightening antics since the adrenaline rush causes pleasure and increases sex drive. Scaring the ladies and maidens, like modern horror movies, may have been yet another method males of the species employed to get females to cozy up to them. Pranks among males increase bonding, too, with fathers trying to scare their sons, and young men creating elaborate pranks to scare and get the best of each other. Ah, the togetherness of holidays.