I think this is one that coalesced out of several half formed concepts. Spoiler: bodily functions One time Dave was on a pain medication that made him constipated for like a week and the entire time he was insufferable to his friends, complaining about it nigh constantly. John taunted him with his own regular schedule and Dave got to be dramatic about his plight. Jade thought the detail he got into was kinda gross but sometimes it was also kind of funny, like when he said if he died he'd make good fertilizer. He and Rose tried to one up each other with increasingly complex descriptions of the situation, but there was no winner there. He let everyone know when the situation, er, passed, so to speak.