A leadership-training exercise Chase Hughes learned in the military: watch a random episode of The Andy Griffith Show and extract a lesson that maps onto whatever leadership or relational problem you're currently facing. Hughes attributes the practice to a commander in the Middle East who, after the unit screwed up, made them watch a random episode — and claims it always contained a relevant lesson, regardless of the episode's actual plot.
Hughes also uses the show as a live illustration of the Shy Guy vs. Cocky Guy (Same Root Insecurity) "Composure Pendulum": Barney Fife vacillates between posturing and collapse, while Andy Griffith stays centered in composure throughout the series.