I took the family on a day trip to Alton Towers. As the kids kicked and screamed in the back of the car, I remembered a tip my dad gave me. “If you don’t stop that,” I said, “I’ll turn this car right round…” They paused for a moment, smiled, and started hitting each other. “Right, that’s it!” I shouted, spinning the car round. I couldn’t help but think my dad’s logic was flawed as we arrived back at the theme park.