Flying AMS-SFO recently there was a thoroughly obnoxious man who started getting a little too much to bear only an hour into the flight. Despite repeated crew attempts to deal with him he persisted in irritating everyone within a 10m radius. Fortunately the situation was resolved by a retired headmistress who proceeded to inform him in no uncertain terms that he was a disgraceful embarassment who everyone on the flight wanted to throttle and that he should sit down and shut up. Didn't hear a peep for the rest of the flight.