Incorrect mask donning.........Perhaps it’s because in my experience as a very regular traveller that only about 10-20% of pax actually bother to watch the safety demo or read the emergency card.....too busy on various social media platforms, reading the paper, chatting, playing with their iPad/phone etc etc
Are all the critics sure the a/c is still in the emergency descent? The videos I've seen of that initial stage show everyone with correctly fitting masks.