The trip to the in-laws had gone about as well as those things can. We were airborne in a rented Piper Arrow II—the kind with the “Hershey bar” wings—headed back home. But first, we had to negotiate a line of thunderstorms. I knew they were there when I took off. But I’ve always had pretty good luck in picking my way through them along this route without getting wet. So off we went.

