Just started a Masters program at a new school. Bikes are numerous on campus and the nearest clusters of bike racks are always full. Close to the rack I lock up to there's this small sign post with no sign on it, about 5 feet high, which is used every day for one to two unloved bikes, often with just a u lock looped around it and over the top bar. Dunno if that's resulted in any thefts but I'd be surprised if it hadn't.

During undergrad I used to lock up my old bike to a pipe in the entryway of my dorm. One day some idiots decided to kick the **** out of it, the worst damage was to the chainring, they bent up all the teeth on it. Never ran well again, even after painstakingly bending it back into shape. I'm lucky the bike wasn't worth much anyway, but beware: drunk *******s are always looking for something to ruin on college campuses!

edit: oh, and my roommate had his bike cut loose from a rack (should have used a better lock) and found it in the lake behind the dorm. ridiculous.