It was a warm day in May as my slide projector motor ran hypnotically. I was in a frenzy trying to make a particular course interesting. (You try discussing cationic versus anionic polymers to nonchemists on a warm spring day.) One student, always the same student, was leaning slightly off vertical and his eyes were rolled up so all that I saw was white. I called a break and met with the individual. I asked what I could do to make the class more useful to him. He said that it wasn't the class but that he was so tired. I wondered out loud, since the class wasn't required, why he couldn't skip class and go out to his car and take a nap.