I drive around the county before sunrise every morning (Radar Love!). It's pretty fun. But as it approaches sunrise, and the morning DJ's get on the air, skool buses come out to eat their prey. They crawl around the curves of the country roads, searching out their breakfast.
When they find a child they want to digest (about every 25 yards, if that), they flash all sorts of warnings and stop. A guard steps out and wands the child, who is wearing a white shirt reaching to his ankles. You know, makes sure the kid isn't carrying a stolen gun to tear up the insides of the bus with.