Joining in with the mini revival of Critique...
A PLANE FULL OF PASSENGERS
A man sits screwing and unscrewing a piece of paper in his hands, this goes on for several minutes, folding and unfolding, rolling into a ball, unrolling, screwing up, twisting and untwisting before he rests the crumpled mass in his lap.
The woman next to him who has been watching this display nods sympathetically...
WOMAN:Nervous flyer?
THE MAN LOOKS TOWARDS THE MANGLED PIECE OF PAPER IN HIS LAP
MAN:Yes, but shhhh, (puts fingers to his lips) with a bit of luck he'll sleep for the rest of the flight.