Listening to Saturday Live on R4 this morning, they had a quizmaster on as a guest and were inviting members of the public to ring in with their funny quiz anecdotes.
A few quite amusing incidents were recounted but nobody mentioned my favourite ever which I witnessed on some random TV show many years ago..

Quiz host: “Name this legendary sports commentator”
(For the audience at home – Murray Walker – flashes up on the screen)

Female contestant: “…..”

Quiz host does a pretty accurate impression of said commentator.

Female contestant: “……”

Quiz host: “Famous motorsports commentator?”

Female contestant looking increasingly panicked : “……”

Quiz host: “You put it in your mouth” (referring to those famous pensioners favourite sweet “Murray mints”)

Female contestant, face suffused with relief and with not even a nanosecond of hesitation: “Dickie Davies!”