Second only to safety stupidity are those people who wear caps, unrestrained sunglasses, and other loose items on rides going 60+ MPH, and those going upside down and sideways several times.
Last year, on the Magnum, a smarmy sort of a man got on the train a couple of cars in front of my son and I, and, by the turnaround, smart-aleck's hat had worked itself loose, and flew by my face. Had I caught it, I would have treated it as a baseball fouled into the stands---the hat's mine!