My very first job was at a fast-food restaurant. One Saturday evening, a guy kept hanging around, asking when I got out of work. It made me feel uneasy. As the hour grew later, he ordered fries, then a drink, so the manager wouldn’t kick him out. Though I didn’t live far, I was scared to walk home alone through a couple of dark parking lots and a stretch through a sandy field. Finally, at midnight, I went in the office to make a phone call.

And the person who answered—my dad—without a second thought got out of a warm bed…