3. 'Chardee MacDennis: The Game of Games' (Season 7, Episode 7)
Given that most of the series takes place inside of a bar, "Chardee MacDennis" may not qualify for "bottle episode" stauts. Yet along with "Charlie Work," this is the most constrained use of Paddy's in the entire run of the series, and adds an additional wrinkle by relying exclusively on the cast's core quintet. As the gang plays a game they made up years ago — one with insanely complicated rules, seemingly geared toward making sure that Dee and Dennis always win — the episode quickly devolves into bizarre stunts and spewing inexplicable blabber. It's the show in its purest, most anarchic form.