After thinking it over in previous posts I realized I had no rejoinder to the argument that we should all be wearing masks to go shopping, so I wore a mask to go shopping. Nothing fancy or ultra-filtering, just an elastic paper mask from a box. I worried I would feel awkward, but instead I felt cool, like a bandit. When I last went shopping, 9 days ago, almost no one was wearing a mask; now it’s up to 20 or 25 percent of the customers. Maybe people are reading my blog! I didn’t ask. None of the Trader Joe’s employees wear masks and I wonder whether they’re allowed to.