So I just returned from Walmart, where I learned something about contagion. You see, I seemed to have performed an experiment without knowing I did so. Walmart was packed, of course, and everyone was frazzled and grumpy. So here’s what I did: I started idly whistling a happy tune. A minute later, I looked around to see those scowls turning to smiles; people talking and chatting; children beginning to giggle. Yes, I spread a bit of contagion. Joy to the world … or at least Walmart. 🙂 Now get out there and spread the contagion, whistle up a good mood if you will.