Not so much overheard, you need to have the actions too.
The Cast:
Him – old, Surrey Market town retired Colonel type.
Her – Sainsbury’s worker, obviously one of those immigrant types, possibly Polish? (yes, it’s important given his actions)
Him: {loud voice, as used on the continent for talking to foreigners}
Have you got any cheese flakes?
Her: {in impeccable english, BUT WITH AN ACCENT!} Cheese flakes?
Him: Yes – you know cheese. In flakes.
(making what is clearly, although I didn’t know it, the internationally recognised sign for cheese, which is making a round with your hands and then touching your hand to your lips)
Her: Yes, I know what cheese is.
Him: Good. So CHEESE. In FLAKES.
Her: Ah, do you mean shaved parmesan? For a Caesar salad? Do you need croutons and dressing as well?
Bloody foreigners, not supposed to know about difficult stuff like culture!!