When I was on the world beach volleyball tour we used to have to wear turbans when we played in some of the middle eastern countries. It was so frustrating because that is a sport where you dive in sand a lot and if they weren't completely clean we'd have to take time out to get them spotless under the threat of "you don't want to know what happens if you don't keep it clean". This one guy on our team decided screw it and threw it to the side one time and nothing happened but he was nowhere to be found for the trip back. HE was getting cut from the team and none of us were friends with him so we thought nothing of it at the time. Glad those days are over.