Turns out, the most fearless and courageous of my friends ("I can?) Is about to embark on a new adventure going on vacation, she alone, in Australia. Talking to her about some of the things in those directions, left some questions, and other pop references that we could not clarify then.
The first and most important came when, taking advantage of going there, I asked to please bring me some souvenirs to sell to Crocodile Dundee. Some famous movie character from long ago that we could see as an Australian Chuck Norris. Well, here I put a picture to see more or less than who they are. Eye hat crocodile teeth, if I could bring one of these, my father would be very grateful and surprised because it is religious fanatic of the three films Mr. Dundee.
 In the same conversation, I asked if he remembered it so controversial chapter of The Simpsons where they visit Australia. Did not remember, well, that chapter parody to Dundee with one of his most famous phrases, "do you think it is a knife? This is a knife! ". Mind you, I would ask the knife, but I do not think I would let him board the plane.
 Why were The Simpsons in Australia? In the episode Bart vs.. Australia, Bart and Lisa have an argument because Bart does not believe Australia Lisa in the toilet water runs backwards (in this hemisphere, the water runs right). Bart then makes a rather expensive call to Australia, so they request and require you to show up to apologize.
A doctoral student at CICESE just visit those lands, when he arrived, the first question was: Is it true that water flows to the left?, Could not answer, you forgot to check. So, your mission my friend, if you choose to accept it, is to apply scientific rigor and actually check that the toilet water runs backwards.
Whyruns backwards? Lisa tells Bart that is due to the Coriolis effect , a physical phenomenon rather complicated and convoluted as you can see in the figures below.
This other picture illustrates better the effect.
However, as many explained, Lisa could be wrong because the water runs from one side or the other depends on many factors, such as the direction in which the water falls, the shape of the toilet, among others.
In conclusion: good trip friend! and if you can and you get a chance, please bring me some Crocodile Dundee give it to my dad. Suerte!