First, I would like to state that I am not a sissy. That having been said, I will continue.
We're doing some stuff at work, stuff that requires much clicking-and-dragging. So, by the end of business (read: "not when I left work- which was after 7") my Mousing Muscle hurt something FIERCE.
It turns out, somehow, by some amazing lack of forethought, I should have stretched the Mousing Muscle. Maybe warmed it up a little. You laypeople would think that typing and "light" mousing all day would be sufficient. Oh, but you would be wrong, as I was.
So now, I have one freakishly buff finger. It's like one of my fingers is on steroids, like one of those body builders. Well, not quite. But we're getting there.
I would do finger push-ups with it, but I'm concerned that this will only make it more freakish in it's muscle-y nature. Sounds like my Mousing Muscle needs to take a few rest days. Except that I am a very slow mouser with all of my other fingers on the same hand (I tried), and my left hand is useless for all things but carrying and knitting.