Just reading the newspaper interviews about passengers opening doors themselves and helping people out the aircraft down the slides.
Ive done Crew Training, (albeit never flown due to unknown medical reasons at the time), and part of the training was to check out the door prior to any evac, obviously checking to see if there is/was fire.
Would normal passengers think or be likely to check this first, or would the mentality be, 'Oh
, get out -> Door open ->Jump'