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http://www.bbc.com/future/story/20170711-what-not-to-do-in-a-disaster
And the older:
http://www.bbc.com/future/story/20150128-how-to-survive-a-disaster
I can't find the other article, but I believe it was a feature when the Amanda Ripley book came out. The article described how one boss at the WTC had sung to his staff to keep them sane as he marched them out, and died when going back to check nobody was left behind. This NPR has an excerpt from the Ripley book:
http://www.npr.org/2008/07/22/92616679/identifying-who-survives-disasters-and-why
In each of the small 'disasters' I've been in (jumped/attacked by a gang, coach crash, hit by a car and broken arm, mass brawl in a nightclub etc) I was afterward left wondering whether my reactions would be the same if the plane went down. That is, snapping into the 'what is happening and how can I get out' mode.
I was actually talking about recent emergency landings, fires and crashes where passengers have blocked exits by struggling to take their hand luggage with them.
I can't find my source but I read a while ago that in real life aviation emergencies, roughly a third of all passengers attempt to take their luggage with them when leaving the plane!
http://www.bbc.co.uk/news/magazine-34191035