Check out the inflatable bag at the end. 300lbs of pressure it puts out. Would it help to have one of these in your pocket if you God-forbid got caught in a 330?

Last year I just got my fingers stuck and my friend simply put a stick between the jaws and pried them open enough for me to pull out. Would this work if you got more of your body stuck?

Here's a link to the "Air Wedge" I think:
Covertinstruments.com