A father bought his son a manual 5-speed car, because the kid wanted a manual. The kid had driven gears in video games and assumed the real thing would be a breeze. Reality knocked the kid's assumption totally out of his head, to where the kid sat in a parking lot with his jaw hanging open, afraid to drive it any more. When the kid got asked "How much else don't you really know?", he just stared out the car window.
Perfect.