My suggestion is like most kiwi rugby supporters you might be clenched a bit tight until the final whistle.

Perceptive as usual Geeves, I'm sure Teach will concede that too, and very gracious in defeat in your earlier email.
I was lucky enough to go to the game and I was sitting next to a very loyal Aussie, who in the end conceded the better team won, and said he would be right behind the blackness in the final. He did say his dad was a kiwi though, so he has a rational reason I guess, but I'm sure all the other reasons that Teach suggested for backing the Blacks would have made sense to him too.
I am now back home so will put together a more detailed report of my experience at the game in the next day or two.
Go the Blacks!