There will be no surviving a global disaster. All of the 'nice' people will be
slaughtered or deprived of the living essentials and all of the 'survival'
types will be instrumental in ensuring they remain alive as long as possible
(along with their families). The worst characteristics of the human being will
predominate and no one will be safe from plundering or maiming or death. Those
who might come through all of that will be either the really ruthless ones or
those who just had a whole lot of dumb luck or fell down a well-stocked hole at
some point.