I had two Thule roof rack systems stolen off my car maybe 10 years ago. The first time it happened my car was parked around the corner from house for some time, so I hadn't seen it in a while. The GF and I left the house and walked around the corner to drive to a group hike. I stopped in my tracks and said "I think someone stole the car." Then I noticed the license plate. I was standing behind my own car but did not recognize it at first without the roof rack, which I had installed back in 1996 and had never removed. Judging from small dents, it appeared that someone pried it off with a crow bar.