Talk about inspirational. I don't know whether I was moved more by the guy who pushed, or the man who provided inspiration through his presence. I see something greater than an ironman here - in both of these men! The next time you feel like complaining about something you don't feel like doing, come back and watch this video.
EDIT: Oh my! I just read that it is a father and his son! Even more incredible.
Click on the arrow in the center to make it play.
H/T to both Kevin Knight at New Advent, and Mark Shea