@siracusa Corn buttering in WarGames: IIRC on the commentary track, the writer or director explains they got this totally random bit from some journalism about neo-Nazis of all things! It was such an oddball detail that they stuffed it in as color for the oddball dad character.
I noted this because, while my family are not neo-Nazis, we butter our corn using this technique. Can’t knock it! Even buttering and yummy melty buttered bread.