I parked my bike in front of Rush University Medical Center, where I work. I left it chained it through both wheels and frame to the bike rack. When I returned at about 3 p.m., the bike was gone. The following note was left from another person (not the thief): "I'm sorry to inform you that your bike was stolen. A man in a green shirt broke your chain with pliers and took your bike. An eyewitness called the Chicago Police Department, but the thief got away." The security guard at Rush says that it happens a lot in this area, and that a common tactic is for the thief to sit on the bike like it's his, but what he's really doing is discreetly reaching down with a compact set of bolt cutters to cut the cable.