Slightly off topic but along the lines of things flying from coasters.....I'm surprised there aren't more injuries on Sapce Mountain. They let you bring cameras, cell phones, whatever on that ride and all it would take would be for one dropped camera to fall at the wrong time and - SMACK! - some unsuspecting rider takes a flying DSLR to the face - in the dark. Would be an awful (potentially fatal) scenario. Maybe it's already happened.
Anyways, sorry for the depressing visual but it's something I've thought about as I have held on for dear life to my camera many times on that bumpy dark ride.