Heh, nice. I took my brake off for the Terror Trials the night before - learned how to ride brakeless riding up to the race and while racing, pretty much. Quite an experience running red lights downtown with no front brake all of a sudden.
After that night though, I enjoyed it so much (and obviously didn't need it too badly) I just left it off. What a blast.
I'm sure I looked pretty ridiculous those times that I rolled up to a checkpoint with one or both feet dragging on the groud though, as I had not yet mastered the art of a complete stop.