The Tire and the Nail

One time, an anonymous child of mine named Ian did not like riding in his dad's car.  It smelled like new car smell and made him feel carsick on those long rides to Taekwondo.  Sometimes he threw up in the car.  So to avoid riding in the car, he put a nail behind the tire.  He hoped that the car would drive over the nail, get a flat tire, and he wouldn't have to go to Taekwondo in the smelly car.  Guess what? It didn't work.  And that is the worst thing Ian has ever done.