I recall one night
(of course it was dark and stormy!) following... (as was all too often the case) the TN -9 into Townsville.
(You can almost guarantee the b*** cheated on his taxi call, as noted above, out of Brissie.)
As he approached his TOPD, he called for descent and was given a "When ready, descend to F250" by ATC. He aknowledged, then, after a short pause, the frequency was blasted by a very loud recorded "Haooogah!! Haooogah! Dive! Dive! Dive!", followed immediately by a very calm "Tango Juliet Alpha, left FL330."
The toy of choice at the time for boys of all ages
was the "laughing bag", which, when you pulled a string, had a maniacial cackle. Another variation had the sound of a U-Boat diving, which the TN captain used on this occasion.
(ATC was highly amused, as were we.)