During one of the more playful conversations around the lunch table at work, Francisca, one of our designers, proposed that airlines should just knock people out and stuff them in capsules instead of forcing people to sit through long flights. If you should accidentally wake up mid-flight, you hit a panic button and gas is released to knock you out again.
Just imagine how cheap the tickets would be! Also, boarding would be over in no time, since they could just load you in with a forklift.