I wonder if you could fall asleep while falling. Would you then start to hallucinate quickly, from lack of sleep and water? Also what if you pee or take a shit, would you then have to fall with those around you? Also if you open your parachute, and then someone else hits you, and you both get badly injured, then have to fall while hurting really badly. Or if you are lonely, you can open your parachute, and wait for someone else falling, and try to catch them.