[Okay, so everyone knows the rule of three when it comes to telling a joke. The third prank? It's kind of a doozy. A few hours before dawn, the old Gotham U Clock Tower is lit up by two giant industrial spotlights below. They reveal that someone has painted green eyes and a big, red smile on the tower. 3, 2, 1 and then the surrounding speakers start to play a laugh track
that loops endlessly.
But, the fun doesn't stop there! The clocktower's hands whirl and the Joker's voice plays over the loudspeaker as the laugh track continues:] Ahem, ahem. Attention students of Gotham University. Class is cancelled for the day so that everyone can enjoy extracurricular activities. Find all five bombs on campus by sundown or the whole place will be blown SSSSKKKKKYYYY HIIIIIGGGHHHH. Heheh! Have fun!