In the Dumpster Grammies, I think I have a good running chance for Most Bizarre Find. I like to imagine that a supersticious employee places the plastic foot there every night to keep the trash theives and evil spirits away.
Then again, maybe the dumpster gods just wanted to console me for the 30-foot fence the food dumpsters were locked up behind. *Shakes fist at fence. Takes picture of foot. Rides home triumphant anyway.*