Aha!! It doesn't, I tried when I was in Australia, it goes down the same way!!
I recall a research project showing that it's nothing to do with the side of the equator you're on ..it's te design of the plughole and plumbing.
Did you knw there's a species of Asian nettle in Timor that if stung by gves the signs of lockjaw for up to 10 days?
Did you know that crushed laurel leaves can be used in a butterfly kill jar to leave the dead butterfly flexible for pinning out?