Several weeks back, I went for a run in the Del Ray neighborhood of Alexandria in Northern Virginia. It’s the sort of place where ‘Black Lives Matter’ signs cry out of security-alarmed windows and the dollar-to-fried-pickle exchange rate is instantly available upon request. I was hoofing it along when suddenly a guy leaned out of nowhere and shouted, ‘Why don’t you wear a mask if you’re going to jog on the sidewalk?!’

I told him to screw off and ran on, but my first reaction was one of pity.