IVY LEAGUE LIGHTBULB JOKES: How many Princeton students does it take to change a lightbulb? Two---one to mix the martinis and one to call the electrician. How many Brown students does it take to change a lightbulb? Eleven---one to change the lightbulb and ten to share the experience. How many Dartmouth students does it take to change a lightbulb? They have lightbulbs all the way out there? How many Cornell students does it take to change a lightbulb? Duh, what's a lightbulb? How many Penn students does it take to change a lightbulb? Only one, but they get six credits for it. How many Columbia students does it take to change a lightbulb? Seventy-six---one to change the lightbulb, fifty to protest the ulb's right to not change, and twenty-five to hold a counter-protest. How many Yale students does it take to change a lightbulb? None. New Haven looks better in the dark. How many Harvard students does it take to change a lightbulb? One---they hold the bulb and the world revolves around them.