I always love after a long leg during a quick turn and the plane is all boarded up when you make your way to the back of the aircraft to "relieve" yourself and you get all these blank stares. It's almost as if they are shocked that you are using the lav as if there is no way pilots have bodily functions. I almost feel like saying "Yeah!! Pilots are human and gotta pee too." Kind of reminds me of looking into a stall full of goats, just staring at you like they have never seen a human before.