Ridiculous. If you need the services, declare a PAN. Besides, if you're worried about what is said on the radio, having a good old ramble about what you need, probably a few times, is much more liekly to get the scanner's attention than a quick PP PP PP (you know, under your breath like Basil Fawlty's
"Fire!".
As for trigger-happy Pans in the RAAF, absolutely. Any press was good press, and besides, who gave a stuff about what the
PR consequences were?!