Some posters here have said that as pax in such a situation, they would have opened a door and fled without waiting for a call to evacuate (even suggesting that they'd assault cabin crew in order to do so -
#268, I hope he was trying to be ironic).
Someone on an earlier page already cited the Airbus that ditched in the Hudson, where a panicing passenger opened a rear door, endangering everyone on board.
Have there been cases of aircraft fires where passengers initiated evacuation uncommanded? If so with what results - positive or negative?