LOL! I run to get in better shape for biking! I can't wear headphones or earbuds while running, bothers me too much, I don't wear them on the bike either.
I do swim but only to go SCUBA diving.
HEY! I have to do the running as I am fat and too outta shape to do MTB races right now. Hell I had to take multiple breaks on Ridgeline the other day...It kicked my tail.