He was out of office at the time but I got to shake Bush I's hand while running the Houston Marathon a few years ago. He was standing along the route cheering on the runners like a regular Joe and my running partner spotted him standing at the curb with a single SS officer by his side. We ran over and introduced ourselves and shook hands - I actually called him George instead of Mr. President. I was about 20 miles in at that point and not thinking entirely straight I guess.