I went to the local walgreens in SF and was trying to buy a tube of toothpaste, apparently the theft is so bad I had to have a person who works there open the case, and while I was waiting in line to buy it a homeless person ran out with merchandise.
There are thousands and thousands of similar stories from others but until residents in SF start voting different I see things getting even worse than they are now. I know that may be hard to believe but we have been experiencing a boom economy, once that changes and things go south expect crime to surge to levels unimaginable.
There's also the simple observation that no doubt many of us have already made: animals all around us seem to have no issues with partially decomposed meat. Dogs don't seem to mind it, nor do cats, nor do other primates like chimpanzees. It's obvious that at least in our very recent evolutionary history we had far higher tolerance to spoilage.
We are an incredibly hardy species. We are clever. We find ways to survive in deserts, mountains, small islands, icey tundras and anything in between.
We plan ahead, we can eat and digest pretty much anything (except for cellulose) and we have as much drive to survive as your average cockroach.
Sure our species is vulnerable. And I wouldn't rule out large percentages of our population dying at some point. But don't bet against the inventiveness and flexibility of humans. We may be one of the last species on this planet to become extinct.