Aussies and Kiwis are totally anal when it comes to customs declarations. Since both are surrounded by sea and want to maintain a "clean, green" marketing image, "biosecurity" ranks high - there are even whole reality television shows filming travelers arriving - or residents returning - being ritually humiliated via their baggage searches and interrogation by customs officials. There are mandatory screenings on all incoming aircraft warning all passengers about making false declarations and threatening substantial on-the-spot fines