Distinctly
MY favourite from the thread only works if Wootton Bassett is in the UK (I think I remember it's near Swindon?).
I won't go hunting for the original but essentially one aircraft is in potential conflict with another and then tells ATC that he has lost sight of it.
ATC: It's behind you
Unidentified a/c on freq: Oh, no it isn't!
2nd Unidentified voice: Oh, yes it is!
Timothy