Top thread. As for me..
Born & Bred in the Shire, Living in various 'burbs until I left when i was 27. All the kids in my street where I grew up followed either St George or South Sydney, and in games of touch footy in our cul-de-sac as a young tacker I ended up playing for the Dragons, and my support for the Red & Whites started from there. I never had an inkling of support for the sharks, never hated them, just another team to me.
I now live in the Eastern Suburbs - Rooster Country. They are a team I've always despised. I see the players a lot at my local hotel, and they are the coolest, friendliest bunch of blokes you'd be likely to meet. True professionals - but come game time all bets are off and my hatred rises again.