It was only a beer bottle I found in the middle of the trail, but it pinged an impulse in me to go. Get back to the car, give up our Saturday hike. I didn’t tell Cheryl, who stood by while I picked up the bottle and knocked off the dust. She’s known me for thirty years, since our kids were babies, and mostly she endures my jumpy nervousness. But a single empty beer bottle in the big, wide open of Oregon on a sunny June day—it was silly, even for me, to get worked up over such a thing.