Like many children, when I was young I was afraid of the dark. Late night walks across the neighborhood kicked my heart rate up 40 or 50 bpm. Every shadow felt sinister and unidentified noises lit a fire in my imagination fueled by my love for scary movies. I think most kids don’t like the dark and most little boys would never admit it to their peers. As I got older, I began thinking that I was getting too old for that sort of thing, but just thinking it didn’t turn off my physiological reaction. I remember thinking the problem through and choosing a course of action to deal with it. We lived...