[fredjacksonsan]

One more...these guys on our dorm floor had a loud stereo that they always played at max volume. While they were out taking their finals, we got our revenge by taking a reversible vacuum cleaner and blowing lime (for field markings) under their door. It ended up being almost 1/2" deep on everything in their room..... 4 hours later when they came back, it was tough to keep a straight face while faking concern...suckers!