PSH! You totally need to write bathroom fic!! Because you know they deal with that shit all the time in the stinky motels they stay in.

And that's totally why Sam gave Dean a weird look in Hell House. Because Dean made a big deal about being out of the bathroom when Sam was in the shower and then made a big deal of closing the door when he went in. Sam just assumed it was just Dean being Dean and he was just being a dork about closing the door to the bathroom.

TOTALLY!