"Man and kangaroo..." joke

An Englishman goes to Australia with his wife, they stay in a 5 star
hotel and hire a limo for the day. While driving along the road, his
wife asks, "Look! What is that man doing with that Kangaroo?"
The man says, "My God! Don't look, it's disgusting."
Further down the road the wife says, "Look, another one!" and
husband says,
"Disgusting! I shall report this when we get back to the hotel."
They arrive back at the hotel only to find a man with one wooden leg
having a wank on the steps of the hotel. The husband charges in and
says, "Look we come here in good faith, to stay in your 5 star hotel
and what happens? We are driving down the road and we come across a
drover in copulation with a kangaroo. Further on, recurrence of the
same thing. Then we get back here only to find a man with one leg,
ONE WOODEN LEG, masturbating on your steps. Well, what do you have
to say about that!?"
The manager says, "Struth mate, you expect a man with a wooden leg
to, catch his own kangaroo?"