It is the end of the world. Flesh eating monsters that were once human are walking the planet. You are at constant risk. Get bitten. Die. Then start doing the zombie shuffle.
How far would you take it to survive? Would you steal? Would you murder?
What if you got bitten? Would you rather live as a zombie than die? Would you prefer to do the zombie shuffle if it is the end of the world as we know it? Or would you want someone to blow your brain outs?