Jo'burg Tower
Some years ago, I was visiting Jo'burg tower in South Africa on a work assignment.
The aerodrome controller (ADC) was a male with a very high pitched, squeaky voice. This guy accepts and clears a domestic Springbok B737 to land. After landing, the B737 clears the runway, changes frequency to the ground movement controller and subsequently asks the GMC:
"Jo'burg Ground, can you tell us whether the controller on ??? (the ADC frequency) is a child-bearing or a ball-bearing controller?"
Funniest thing I've ever heard.