First off, PLEASE don't answer this list with 'that could be any type.' I know that's true, but I guess this is just which type has a predispotion to what mental 'disorder.' I created this list out of funness more than anything...just reply to what you intuitively think fits the description I guess. Try not to get offended, I might strike a nerve but that's kinda the point.
Nihilism (belief that nothing matters and everything is pointless):
Laziness, couch potato:
Obsessive Complusive Disorder:
Prisoners (the average type of people in prison):
(more will come later but that's enough for now)