WTF, muse?

So last night, I was attempting to get to sleep. (I wasn't feeling well, and sleep would have been a good thing.)

But instead of sleeping, my brain was chewing on something my muse was telling it.

Me: trying to sleep
Muse:... But what about CROSS-FACTION TRAPPED IN A CAVE HEAT FIC HATE SEX???
Me: What?
Muse: You heard me! CROSS-FACTION TRAPPED IN A CAVE HEAT FIC HATE SEX!
Me: Um. Can we think about this later?
Muse: NO! Here's how it goes....

And three hours later I had a half-assed plot and I was finally able to go to sleep.

Except in the morning I realized that the plot wouldn't work, so my brain spent another hour trying to fix the plot and came up with an alternative... Which is kind of dark.

But I know I'm going to end up writing it eventually. >.>