If it is in Amerikaland then I'd scream loudly and say things like "Oh my god!" at least twenty times in a row because apparently that helps.

Otherwise, it's nearest exit and out.

People stopping to get luggage are to be helped by stopping to beat them senseless: if you're going to die because of the stupidity of someone else then you may as well die somewhat avenged. Not my job to help others - if US carriers are going to spout the "we're here for your safety" then they can damn well do their job and look after the bottom of the survival bell curve.