Nah, over-optimism is a sign of insanity in these conditions.
@Louis, Ellis, and Coach.
So you expect everyone during a zombie apocalypse to act in a vain and negative manner, and THAT'S what you define as sane? Get real. Not every person is going to follow that formula, obviously; have you even considered the background of said characters?
Louis and Coach are the real mental ward-worthy guys though.
Yeah, because a guy that used to have a day job in the office with some minor shooting skills and a retired football coach who cheers on for victory in even dire conditions are ward worthy.