I've got one better...on a recent flight to London from ATL two girls from a college group that were also travelling on this flight were seated behind me. Not only did they grab my hair almost every time they got up, but the girl behind me thought that it would be more comfortable to use the back of my seat as the back of her seat. Throughout the majority of the flight she was turned around in her seat with her back up against mine. You would have thought that a few quick reclines of my seat would do the trick...not so much. That's probably the reason they resorted to the hair grabbing.

Along this line...when the majority of the plane is attempting to sleep, dosen't it seem appropriate for a flight attendant to ask folks (these girls and their twelve friends) to keep the noise level down so they don't disturb others?