"[color=#FF00FF]Geoff, I noticed in both pics, there was a bunch of fluid on the ground under that big ol' thang... wonder whazzup wit dat. Gray water (ewww, or even blackwater leak)? AC condensate? Mop water? Melted zombie/wicked witch?"
Given the Australian propensity for consuming near mythical quantities of beer I suspect that the million dollar RV just has a direct flow toilet...Australians have more expressions for taking a leak than the Eskimos have words for describing snow and there'd be no way to store it all, even in a vehicle that size.
While the humor is definitely best appreciated if you know something about both cultures the movie is really funny. Not as obscene as the Barry McKenzie comic strip though. Mind you, the Australian Govt. actually banned the first Barry McKenzie movie. I guess it just didn't show Australian culture in the best light.