Video Denial of service...
Basically, they have retractabe LCD screens that pivot down from the ceiling on both sides of the planes. The screens are about 10-12 inches wide, 8-10 inches tall, and there's one about every 4 rows on both sides.
Well, a denial of service condition exists where if someone 'pushes' the screen on it's pivot, it will cause *all* screens to retract, and also reset the video unit--which means the on-board movie would have to be restarted (or so we were told when we were warned not to push it...we got awful close, and the flight attendant dropped her bag of peanuts and ran over to warn us of this denial of service condition).
:)
r.f.p.