Ok, for all those non aussies out there bare with me

So what you need to know is that there are four competing beer breweries in Australia,

One day the four CO's of the local breweries meet for lunch at a local pub to discuss thier trade.

They sit down and after a short while a waitress approaches and asks the men what they would like to drink.

The CO from XXXX naturally asks for a beer from his company,
So does the CO from Carlton United Breweries, and also the one representing Boags and Son,
The fourth man representing VB (victoria bitter) asks for a coke.
Stunned, the others ask him why he has orderd a coke, to which he replies : " Well if you guys aren't going to have beer than neither will i"