I'm currently training to do a tri, but haven't yet done one. I have a question about leaving your bike at the transition station: does anyone watch it for you? Are you supposed to lock it? Maybe I'm a little paranoid because I just bought my first expensive bike (had 2 cheapies stolen in college), but I'd love to hear how they prevent theft. I mean seriously, you leave thousands of dollars worth of gear there, does it ever get stolen?