It all began with a simple request for help from a fellow teacher. I teach philosophy at a junior college and late last evening, just as I was about to leave, my drama colleague popped into my office and asked for a simple favour. One of her students was having trouble with her role in the upcoming play, and needed extra time to rehearse, ideally alone in the studio. All I would have to do is remain in my office, which happens to be next to the studio, all evening long.

She herself couldn't stay, but college policy dictated that students couldn't remain alone in the building past 8 o'clock....