Carnegie Mellon has a tradition of taking two days off in April to celebrate the rites of spring, which takes the form of a buggy race called "Sweepstakes." It's the one sport we really excel in, largely because it involves stuffing very small women into very small vehicles designed painstakingly by nerds. My student Catherine Rodriguez is a buggy driver this year. She's very small. Be safe, Cal.
Carnival also involves werewolf sightings (see Fig. 1)
Fig. 2. Not a werewolf.
David Holcomb (Fig. 2) and I may not be werewolves, but like them we track our prey by smell, and so discovered a huge campus-wide barbeque, free to anyone with a card.