MIT students derive great pleasure from tormenting their rivals at Harvard. Our favorite prank of theirs occurred during the 1982 Harvard-Yale football game when a weather balloon emblazoned with the letters “MIT” began emerging from the ground near the 50-yard line. In the preceding days, a group of MIT students snuck into Harvard Stadium and wired a vacuum motor to blow air into the balloon until it exploded, proving once again why you don’t mess with engineers.

Watch a video of the prank here.