I also ran into him in an airport in December 2006 -- in LAX T7 for his red-eye back to L.A. after scoping out potential fundraisers here in Los Angeles. Unaccompanied, and I walked right up to him and shook his hand and asked him to run (he hadn't declared yet), because I felt he could really win if he did. He smiled and said thanks, and was so gracious and cool, and a few other people came up to him but it was very late at night and now those days of wandering around an airport terminal alone are long gone!