Have you even had a moment, an hour, or a day that renewed your faith in the fundamental goodness of humankind?
When Gail, our second cat, was deteriorating, she stopped eating. In desperation I went to Whole Foods and asked the clerk in the seafood department for ideas, explained why, and then asked for a sample size of the fish he recommended. He cut off a fairly decent chunk and, although it was more than I wanted, I took it up to the register. It turns out that he had put in the code for "free sample". And the fish was one of the last things she ate.