Mooning
Australian capital city airport, sun has just set and moon is rising majestically over the ranges:
B737 has just vacated the runway and is taxiing to the terminal.
As the aircraft truns a corner on the taxiway, the (senior sounding) pilot, overwhelmed by the beautiful vista through the windscreen says over the radio, "That's a magnificent moon!".
The ground controller responds with, "Whoops, I didn't think you'd be able to see me from over there".