Leader: How the hell am I supposed to freaking do my job if you all complain about not having "fun" while I'm trying to feed you everything I can while I look for other survivors and save your asses for an incoming zed attack?? The hell is wrong in this place?!?! Survivor: Sir, I think it's the lack of parties while zeds are jogging straight at us...
I have closed the evil portal, found a cure to zombieism, made a constitution, and has cleared all the city blocks from zeds and have saved the survivors... except for one... Which now is survivor free and zed free, and clearly ripe for picking.
And then my builders still dies from a noise of a falling chassis that attracts the now non-existing zeds.