Three guys - a Tasmanian, a Queenslander and a New South Welshman - are out walking along the beach together one day.
They come across a lantern and a genie pops out of it. "I will give you each one wish, that's three wishes total", says the genie.
The Tasmanian says, "I am a fisherman, my Dad's a fisherman, his Dad was a fisherman and my son will be one too. I want all the oceans full of fish for all eternity."
With a blink of the genie's eye, 'FOOM' the oceans were teaming with fish.
The Queenslander was amazed, so he said, "I want a wall around
Queensland, so that we can run our own State how we feel, and no hippie southerner can tell us what to do. I want it so nothing and no-one will get in for all eternity."
Again, with a blink of the genie's eye, 'POOF' there was a huge wall around Queensland.
The New South Welshman asks, "I'm very curious. Please tell me more about this wall."
The genie explains, "Well, it's about 150 feet high, 50 feet thick and nothing can get in or out."
The New South Welshman says, "Fill it up with water."