Tied sneakers leave the feet at three G. Consider not the decompression, but the freefall at 400 knots through the atmosphere. Not all our people stayed inside a disintegrating fuselage. At 200 knots stick your paw out the little vent window of the 402. Actually, don't, just put your finger tip into the airstream, and hopefully you'll pull it back with its fingernail. A Tornado at 250knots will disintegrate a Cadillac, at 400 knots?