An Australian joke Dave returned to Snake Gully after a brief trip to Europe. Dad said, 'Reckon you saw a lot of mighty fine things in that Europe.' 'Sure did, Dad. Cathedrals, palaces, mansions. But what impressed me most were the dunnies. They sure have got terrific dunnies. And they all flush.' 'Well, son,' said Dad, 'reckon you ought to build yourself one of those posh dunnies. But you'll have to get rid of the old shithouse first."" 'Nothing to it, Dad.' Dave took out a hand grenade that he…