Marlene Willoughby related an anecdote on the Rialto Report about the pissing scene. She said that Ultramax went out and bought a 6-pack of beer and drank it right before shooting the scene in preparation.
At 10:42.... The soundtrack features "Several Species of Small Furry Animals Gathered Together in a Cave and Grooving with a Pict" off the Ummagumma record by Pink Floyd