Three Kiwis and three Aussies are traveling by train to a conference. At the station, the three Aussies each buy tickets and watch as the three Kiwis buy only a single ticket.
"How are three people going to travel on only one ticket?" asks an Aussie.
"Watch and you'll see," answers a Kiwi.
They all board the train. The Aussies take their respective seats but all three Kiwis cram into a bathroom and close the door behind them.
Shortly after the train has departed, the conductor comes around collecting tickets. He knocks on the bathroom door and says,"Ticket, please." The door opens just a crack and a single arm emerges with a ticket in hand. The conductor takes it and moves on.
The Aussies see this and agree it was quite a clever idea. So after the conference, the Aussies decide to copy the Kiwis on the return trip and save some money (being clever with money,and all that). When they get to the station, they buy a single ticket for the return trip. To their astonishment, the Kiwis don't buy a ticket at all.
"How are you going to travel without a ticket?" says one perplexed Aussie. Watch and you'll see," answers a kiwi.
When they board the train the three Aussies cram into a bathroom and the three Kiwis cram into another one nearby. The train departs. Shortly afterward, one of the Kiwis leaves his bathroom and walks over to the bathroom where the Aussies are hiding.
He knocks on the door and says, "Ticket, please."