I was on a DTW-BOS NW flight several years ago (as it happens, my only flight on the late lamented NW DC-10), across the aisle from a tour group of Japanese schoolgirls. During our final approach into Logan, one of them stood up to fish a minidisc case out of the overhead bin so that she could change her musical selection. Apparently she didn't realize that we had maybe three minutes left before touchdown. Needless to say, the FA's were not amused.