Mark A. Rayner said this quote

That’s the thing about the collapse of civilization, Blake. It never happens according to plan – there’s no slavering horde of zombies. No actinic flash of thermonuclear war. No Earth-shuddering asteroid. The end comes in unforeseen ways; the stock market collapses, and then the banks, and then there is no food in the supermarkets, or the communications system goes down completely and inevitably, and previously amiable co-workers find themselves wrestling over the last remaining cookie that someone brought in before all the madness began.