[Sans, having at least gone from lying in the hall to just sitting in it, reaches up reflexively to where he hit his head, staring at his hand as it comes back red and wet.]

Huh. Guess that's kinda a red flag. [Sans laughs, because this whole thing is starting to seem even more ridiculous to him.] Should probably wrap it with somethin' after I clean up, or I'm gonna drip all over everything.