Along the lines of the Columbia house story, I lived in a fraternity house for two years in college and guys were constantly setting up BMG accounts with fake names. We would actually still get bills in the mail for accounts that older brothers had made up years back long before we ever moved in.
Also, I used to work on the maintenance crew on a golf course in Ohio for five summers and we used to find all sorts of clubs and equipment all over the course. If it was something very obvious, like a $300 driver, you knew they would come looking for it, so you would turn it in. The clubhouse would keep the items for like 2-3 weeks, and if no one claimed it, the person who turned it in would get it back. The Ping EYE 2 sand wedge in my bag now arrived that way. Irons left around the greens were very common.
Anyway, one day I found this ugly ass pair of Oakley sunglasses when I was mowing a green (not ugly per se, but they were maroon). I actually wore them back into the garage, and one of the other workers was like, "wow, nice shades" and I said, "they are alright, I'm actually thinking of getting some new shades and getting rid of these" To make a long story short, he traded me a $100 pair of Nike sunglasses for shades I found on the course.