Plenty of these sorts of stories floating around, though luckily enough for me I managed to avoid it whilst flying in the Top End.
A story a little closer to home is quite amusing though. A student pilot on a cross country nav to Mudgee inadvertently landed at Rylstone (about 20nm away). Now Mudgee is sealed, with an NDB and a rather flash little terminal building. Rylstone, two grass strips, both much shorter than Mudgee, no terminal, no navaids.
This bloke was rather inexperienced so some allowance has to be made, but the arrogant pr1ck returned from the nav saying "The ERSA entry for Mudgee is incorrect. There's no sealed runways and the runway direction is all wrong too."
TL