Heeeey, a word of advice...

Australia, you need to work on your customs and immigration. We went through Christchurch airport today and the welcome we got there was about a million times more friendly and on a scale of 1 to 10 (10 being "Most Arrogant"), you guys get 100, and the kiwis get -50.
Why don't you turn that frown upside down?! If I tell you that all I'm carrying is a packet of Mentos, I'm not trying to trick you, so there's no need to then ask me if I'm carrying any fresh fruit or veg. We both know that Mentos don't fall into that category. Take a tip and make like a kiwi! A bit of casual, non-accusatory chat never killed anyone!