A good Aussie Joke

At a  national conference of the Australian Hotels Association,  the general managers of Cascade Brewery (Tasmania), Tooheys (New South Wales), XXXX (Queensland), CUB (Victoria) and Coopers (South  Australia) found themselves sitting at  the same table for  lunch.
When the  waitress asked what they wanted to drink, the GM of  Tooheys said without hesitation, “I’ll have a Tooheys  New.”
The  head of Carlton & United smiled and said, “Make mine a  VB.”
To which  the boss of Coopers rejoined, “I’ll have a Coopers, the King  of Beers.”
And  the bloke from Cascade asked for “a Cascade, the cleanest  draught on  the planet.”
The General  Manager of XXXX paused a moment and then placed his order:   ”I’ll have a Diet  Coke.”
The  others looked at him as if he had sprouted a new  head.
“Well,”  he said with a shrug, “if you poofters aren’t drinking beer,  then neither will  I.”