Male Restroom Etiquette
This video is ten minutes long, far longer than most men will ever spend in a public men's room, but it covers some fairly important points -- like why you shouldn't talk in there, or where you should piss when given a choice of several urinals.
And it's funny.
We're certain that women have their own public-facilities rules that probably aren't as blatantly based in homophobia as this, so we await that film when it's released. So to speak.