Years ago I was on Adventure Express riding in the back, when the people a few seats up thought it would be good to throw up their cup of water guess who got hit with the cup. It was just a little plastic cup, but still if you can't hold on to things while you ride then don't take them on the ride. I almost took some sunglasses to the face on The Beast once but I was lucky enough to dodge those. The only thing I've been hit with on TR:TR is change that people think will magically stay in their pockets.