dean is grumpy because no one ever leaves things where they found them, so he’s turning the armory upside down looking for that one rifle while cas shuffles behind him, bored, and dean grouches “who took the good rifle” and cas says “your mom” and dean drops the spear (why do they have a spear?) to the floor and just stares in disbelief at cas, who, stone faced, follows up with “your mother, mary”, and dean rolls his eyes because of course it’s mary, but there’s no way cas doesn’t know what he’s saying when he drops lines like that. “i’m rubbing off on you”, dean mutters. this time it’s cas time to drop what he’s holding (an empty box of ammo dating back to the 50s). “you humans make very little sense to me”, he gripes, and dean doesn’t believe that cas thinks that for a second.
