A word of warning as a Brit in Australia. You'll get funny looks when talking about routers and root!
On my first (and only) visit to Australia I got stopped at passport control. The security bloke took my passport and looked at it. Then kept looking at it, in silence. His face was straight and sour, but his shoulders were ... twitching. This went on for more than a couple of minutes until, finally, he looked up from the passport, stared into my eyes and asked: "Is that your real name?" Confused, I nodded. He handed me back my passport and waved me through - to his credit, the man never smiled or laughed at me, but I could see it had taken him a lot of effort to maintain his control.
A day later I learned about the Wombat Joke. I grew to hate the Wombat Joke. I'd love to visit Australia again, but I'll probably use a false passport next time.
I'm embarrassed to admit I'm not aware of the Wombat Joke. I'm assuming you were warned about the danger of Drop Bears though :-)
The search engines tell me that there are lots of wombat jokes, but don't seem to know any that stand out enough to deserve a "the" in front.
... Yeah. I don't get Aussie humour either.