Uhh, dunno about cattle and sheep, man - there's a drought
happening. 
Well, we obviously move in different circles, dude. I've got
absolutely no trouble finding something to do any given night of
the week, although I suppose I've wound down a bit since I got
engaged. In any case, it's horses for courses, I suppose, and the
Sydney vs Melbourne thing is older than both of us put
together.
The passport and student visa thing isn't going to be of much use.
Even if you can find the runner, you don't have a leg to stand on
legally if you want to make a claim from him, simply because
there's no documentation to show that he was responsible for part
of the bill. Not that I'm a lawyer, but I've had to deal with
enough situations to know that if it's not in black and white,
you're screwed legally.