My gym pass included a free personal training session.
Excerpt from conversation between me (M) and my personal trainer (P):
P: So what exactly do you want?
M: You mean like goals for this program?
M: Well, better overall fitness. And, I'd like to lose ten pounds.
P: What?! You don't have ten pounds to lose. You have the body of a marathoner.
M: Uh, thanks, that's nice of you to say.
About five minutes later...
P: So, would you want to run a marathon?
M: Maybe. It's something I've considered. I've done half-marathons before, but not a whole one. A lot of my friends are marathoners, so sometimes I think it would be fun to join them.
P: Totally. You know, if you lost ten pounds and trained hard, you could do a marathon.