I 've heard stories of medics saving soldiers with this plastic. Sorry, I honestly can ' t remember where...
I can...Germany and Ft. Campbell, KY.
I went through an 'emergency combat medic' course that lasted 1 week. The course was short in duration, because they only covered the basics of what medics deal with - and focus on extreme situations instead of giving a full fledged course...
Not only did they have cling wrap on hand, they made us wrap each other up in it...no, not the whole body, just particular parts...
Good post man, it really does work...and like you mentioned, you can also use it for rations; but we joked about using it on the instructor giving the course - a mean SOB and yelled at everyone - so we thought it would be funny to wrap his mouth up...but that never happened.

