Okay, so I sit at the pointy end behind the locked door, but I couldn't resist one of these that one of my colleagues told me once.....
BA flight from USA. American pax keeps pressing the call button and demanding to know what sort of animal an 'Ooot' is. Eventually, the 3rd of 4th steward/ess figured out what the pax was talking about; the 'UHT' on the little milk pots on the tea trays.
Well, I liked it anyway