Two Irishmen are traveling to Australia. Before they leave home, one of their dads gives them both a bit of advice:

You watch them Aussie cab drivers. Theyll rob you blind. Dont you go paying them what they ask. You haggle.

At the Sydney airport, the Irishmen catch a cab to their hotel.

When they reach their destination, the cabbie says, Thatll be $20, lads.

Oh no you dont! My dad warned me about you. Youll only be getting $15 from me, says one of the men.

And youll only be getting $15 from me too, adds the other. lol