legs: Um, this seems to be a particularly long hill.
me: Not to worry. Almost over.
legs: We’ve been going uphill for a long time. Where’s the downhill?
me: Not to worry. Almost over.
legs: Seriously. This isn’t much fun. Are you not familiar with the theory “all uphill isn’t much fun”?
me: Not to worry. Almost over.
legs: We would like a show of hands for who wants to stop. DAMN IT, HANDS!!!! Well, sure. They’re just hanging out up there enjoying the view. Burning down here.
me: Not to worry. Almost over.
legs: OWW DAMMIT GRCXYYYY X7@$#!!!!!!!
me: Not to …. YOWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW CRAMPPPPPPPP!!!!!!!!!! MAKE IT STOP!!!!
legs: Not to worry. Almost over.
i like margarine 
My body parts have these conversations all the time. Best not to let them go too far without a distraction.
Made me laugh!