Heard in a land Dunnunda many years ago:
"Ladies and Gentlemen if you look towards the rear of the aircraft you will see the Captain demonstrating the use of the urinal"
Unfortunately, young military FO pressed wrong button whilst transmitting and all flying in Southern Queensland got to hear.
Naturally there was a clamour to get on the mike and the first response was:
"Geez, you'd a thought Qantas could have afforded doors on the dunnies by now".
Doesn't make the flying any better but it makes it a lot more fun.
On the beach
