Ds watches a lot of Air Crash Investigation programmes and already has a good idea of the safest places to sit in an aeroplane (over the wings for structural integrity, near the emergency exits for the sort of crash where the plane lands not too badly damaged but there might be a fire). Also putting a bag in front of your legs is useful, as often people survive the crash but get their legs broken when they slam into the bar in front of them, and then can't escape from the aircraft. Oh, and wrapping a fleece jacket or something round your head if you are making an emergency landing helps reduce the risk of a head injury.