A colleague picked-up the phone and after a word or two said to another colleague "It's a call from Oz, the wizard sys your brain's ready!"
Then there is always the yoghurt/Oz difference joke (something about a living culture)
If there are any NZ catters reading I'm sure we could see some fair bonza quips.
NZ is where I heard the $4 Oz haircut one (a buck a corner - mate)
spotyer