I personally flew into a place in the MaCarthur area and after landing had to drive the strip with a station hand and dig out sapplings from the strip cos it hadn't had mail fllown-in, in close to 2 years. Thought that extra couple of hundred metres might be nice, given that there was a rock at the end!.
PFFFFFffffft..... nothing mate..
In PNG I once had to circle for three days while the natives cut a strip 100 metres long out of the dense jungle......