Whenever we met, I would spin my best stories with Mark in something of a verbal sparring match. He always won, but I was proud to have been able to make him laugh. I lecture around the world, and always include a picture of Mark in my presentation to remind me that it is not only ok to tell stories, it is a most honorable profession. I miss you already, Mark, and look forward to seeing you again. You've got one heck of a story to tell now. --Ken