Long before my time but an F/E related the following to me from the CV880 days.
The company was obliged to employ a couple of ex-RAF Shakelton navigators to operate into Perth (there being no INS in the a/c). They used to be based in either JKT or KUL and board southbound.
Top of climb ex-JKT for PER a spear goes through the roof followed by some scribbling and a little note going to the PF. Capt, F/O and F/E all originally from Perth and with RAAF Pearce time.
By this time the bunsen burner off Carnarvon is visible and the lights of Perth a blur in the distance.
Note ( suggesting minor track change) studied. PF passes it to PM and thence to the F/E. F/E to PF and PM "Will one of you tell him or will I?".
PF "I guess it is me".
"We only want to get to Perth not bomb the f.....g place".
Apparently the navigator left in a huff, not to be seen again until the baggage carousel at Perth airport.