Teenagers and pranks are an age-old combination, from skipping class to sneaking out after dark. But two New York City teens took things up a notch this week, swapping the usual joyride for something far more audacious: commandeering an out-of-service subway car. On the night of September 12, the 17-year-olds boarded an idle train in Queens and attempted to drive it themselves. They managed to move about 50 feet before crashing into another empty train car at the Briarwood station. Fortunately, no one was hurt, and the damage was minimal, but the teens fled the scene.