I tried my best to teach my son everything I could about his car, which is a 1997 Ford Ranger stick. I went over maintenance and other mechanical things in great detail until I was confident he knew how to operate that vehicle inside and out. Unfortunately, I didn’t do as good a job as I’d thought: The first night my son had his license, a policeman pulled him over as he was getting on the highway. Startled, my son looked up at the officer and squeaked, “I wasn’t speeding, was I?” The officer shook his head and smiled, then reached in and clicked his headlights on. In my haste to educate my son about cars, I forgot to mention the simplest thing of all!