I do believe I just saw the first real "Iron Man". Awesome. Thanks for posting that.
On a related note, (sort of), in one of my early bike races, the course was a bear, and totally not the kind of course I preferred. I was whining pretty bad, griping about everything and I would never do that race again etc, and I got passed by a guy with one arm, on a steep uphill, he was riding, I was carrying. I quickly shut up, got on the bike and finished the race.
Don't forget to appreciate all you have.