We’re living in the time of covid. There’s another surge right now; it started just before Christmas, and with the cold, rainy wether and holiday gatherings it’s cruising along. As a result, I’ve been somewhat terrified of the kids injuring themselves. We’ve never had to go to the emergency room. It seems that now would be a terrible time to start. I made myself worry even more when, on an early morning walk, I stepped onto one of the rocks scattered throughout our local park—for people to perch on or to create borders—and promptly and unceremoniously slipped right back off, my hiking sandals finding no purchase atop the boulder made slick by the morning’s fog and the previous night’s rain. Things got so bad—in my own mind—that a few days back I did one of the thing I try very hard never to do. I asked the kids to be careful when they were playing on the rocks. It was ridiculous. I regretted having said it immediately. The kids grew up in that park. They know every single rock lik...