I remember a flight, many years ago now - Boston to San Fransisco on United... daytime flight, not much decent IFE, not much of anything really.. Mid way the Captain came on the PA and did his usual stuff on the flight, weather, arrival time etc. He went on for some time and proceeded onto what most people assumed was a bit of
PR... explaining to the passengers some aspects of flight safety, the expanding United route network, importance of customer service... whatever. He started off in that slow, relaxed southern drawl.. totally professional, totally competent, Mr Pete Perfect Pilot and gradually, over a couple of minutes, degraded to Jethro Hillbilly, swimming around in the shallow-end of the gene pool, who'd certainly have made the cast of Deliverence... It was very subtley done, probably very well rehearsed, and by the end totally hysterical. It was fascinating looking around the cabin seeing at what stage various passengers were picking up on the fact this wasn't a cabin announcement, but a comedy sketch. Very memorable.