There was this guy that I knew many years ago. I say that I knew him, but in reality I was only aware of him. If I ever knew his name I have long since forgotten it, and I doubt that I could pick him out of a photo lineup after all these years. I suspect that we may have spoken less than a dozen times over the years but I was aware when he was not around. He was a loner, not sullen or unfriendly but someone that seemed to enjoy his own company.