Just for giggles, I was looking at the participant list for Ironman Arizona (which is sold out).
All sorts of people, but what got me were the occupations. Some examples:

Window Washer
Flux Capacitor Repairman
Trophy Husband
Zig Zag Trick Swimmer
American Idol Finalist
Fun Stomper
Dragon Slayer
Bean Counter
Cookie Eater
Gadfly
I Corrupt the Future
Tidal Pool Explorer (from AZ)
Pizza Professional
Chief Bottle Washer
....and more! Way too funny!
I guess you need a sense of humor to do Ironman, eh?

That's my goal for SOMEDAY, but tomorrow I'll do an online "tri" challenge with a buddy. 18 mile bike, 3.1 mile run and 500m swim and my first "tri". I work weekends, so real tris are kind of out of the question.
Granted, I'll do the bike then drive to the gym to do the other two "events", but it will be almost like the real thing. We'll see how it goes! Been trying to run more the past couple months and I'm up to 3.1 miles at a stretch with nary a walk. Although my run is more like a sick looking amble.