in 217516 20070117 182744 Paul Hyett wrote:
In uk.sci.weather on Wed, 17 Jan 2007, cupra
wrote :
In case of a nuclear attack :
Put your head between your legs - kiss your ass goodbye, you've had
it! 
Also known as the 'brace' position in aircraft!
Designed to snap the neck immediately in the event of a crash.
ISTR they 'did' that one in MythBusters.... didn't see it though.
I did