So, because you can’t stand up and have to have your lap clear for the last hour of flights, you need something to do. May as well generate a flashmob.
Option One. Coordinate with a wide variety of people traveling all over the country. Have everyone piss their seats 10 minutes before landing – in thirty airpots, on thirty flights. (Would be better if done without their knowledge – through free drinks before a flight etc.)
Option Two. Really any coordinated activity on the plane itself. Goal? Force the TSA to ban some sort of absurd, asinine behavior. IE. Groups speaking in LOST-style whispering tongues; or bursting into song, or turning your sweatshirts inside out. OR… pointing at the wing and saying ” Oh my god, there’s a man on the wing!” 
