I didn’t witness this incident personally, but it went down in the company annals. It was back in the early 70s, when I was airline cabin crew.
A certain stewardess was said to be from a very upper-crusty family, and possessed the voice and bearing to match.
At a mass crew and hangers-on dinner, somewhere abroad, so the story went, some letchy bloke sitting next to her started by putting his hand on her knee (invisible to everyone else under the table) and gradually moved it higher and higher up her thigh.
Apparently she said nothing, and didn’t react at all, until at a certain point she apparently said - at the very top of her supremely upper-crusty voice, so that it echoed all round the table - ‘Would you kindly take your fucking finger out of my fanny?’ 😂