This is an old one, but when I first got down to Melbourne in 2005 (at last! Regular Football!) one of the first games I got to was Demons-Carlton at the dome. (not a good omen, you could say)
Sure we lost, which was annoying, but I got a bit of amusement when a couple of dodgy looking teenagers sat down next to me and started commenting about the game. Fair enough comments, though they seemed to think they knew everthing. It wasn't until Mark Thompson sat down directly behind 'us' that I realised I was pressing for room against Gary Ablett Jr. Dodgy looking teenager, definately!
Nice way to arrive for a year of constant football... I mean, living in Melbourne.