Boxes of poop are trending on eBay for more than zero dollars. Because they sold out on black friday and are now rare. Boxes of poo are now a rarity. The least desireable substance on planet earth is now a rare commodity, that people are trading for actual money.
I'm not really with this whole 'slow breakdown of society' business. Can we just skip to the part of the movie where the earth is reclaiming the architecture and humans have gotten over their cannibalism taboo?