My Trek 412, purchased new in December 1982, was stolen outside the Menlo Park, CA, Caltrans station around 1989. I may or may not have locked it up as I had a bit of a hate-hate relationship with that bike. It was initially perfectly fine, but I collided head one with another cyclist on Stanford's campus a year or two after buying it, which bent the top and downtubes but left the fork perfectly fine. I continued to ride it, twitchy handling and all, and even sent a letter to Trek in Waterloo, WI, complaining that the fork should have absorbed the impact of that crash, but they didn't respond. Once it was stolen, I felt some relief that I didn't need to ride it anymore and anticipation that the thief would crash on a gnarly descent.