In my twenties, on an Alpine snowboarding trip, I led two friends beyond a “no entry” sign onto an ungroomed trail. As we descended, I worried we were heading in the wrong direction. I suggested we stop and go back, but my friends took one look up the steep snowy slope and shook their heads, so we continued on down the mountain. Soon we were completely alone, beyond any signs of civilization, surrounded by snow, ice, and rock. Read more.