Years ago I had what I thought was a really nice bike. Mid 70's full Campy, Columbus tubing etc. I bought it used but it was my pride and joy.

One day I was at a friends BBQ (I had ridden my bike there) and started talking to a guy and he asked my why I don't have a lock. I just let him know that I never take my eyes off my bike, ever. He just couldn't believe it. He went on and on about "what if I went to the store and hand to leave it outside" and I just let him know that I wouldn't do it. I think it was the first time he had ever run into a real bike nut. He just couldn't believe I would never leave it out of my site. It was actually a fun little exchange we had.