I’ve done my time in the darkness. Actually, I’ve done several stints in the darkness, and the thing that always gets me about the darkness is that I don’t actually realize I’m wandering around in it until the light begins to break through again. I’ve been caving once, and, to be perfectly honest with you, I hated it. I’m not entirely sure what it is about crawling into the center of the earth, being cold, feeling constantly damp, and worrying about taking a wrong turn and getting lost forever in the bowels of the earth that actually appeals to people. For some reason, though, there is this whole population of individuals who seem to think this is an enjoyable pastime. I found myself on an adventure with some of these people once. They assured me caving would be exhilarating and enjoyable. They were wrong. They assured me I wouldn’t feel like I was going to get swallowed up by the bowels of the earth. They were wrong. They assured me I...