I'm not familiar with the Austrailian brands that Dave fed to his sink, but the comments I've seen about "that's not beer" remind me of a joke:
(Joke uses Yank brands, sorry)
The president of Budweiser, Miller, and Coors were having dinner with the president of Guinness.
The president of Budweiser ordered a Budweiser to drink, naturally. Likewise with the president of Miller, and Coors.
The president of Guinness ordered a club soda.
"What?" the other three said. "Why didn't you order a Guinness?"
"Well," said the president of Guinness, "If you guy's aren't drinking beer, I figured I shouldn't either."