Do some research about where I live, and that will explain my avatar
Here's the true story (source: http://www.austinscaravans.com.au/twotas/):
Early Tasmanian folklore has it that in 1842, Tasmania's then King, King Wilbert the (1st) from Burnie, and his wife Isabella, gave birth to a baby. Sadly this child was born with two heads, hence he was named Prince William-Herbert- one name for each head.
Of all the tragedies, poor Isabella survived the birth, but died months afterwards from the shock and complications.
In 1864 Prince William-Herbert was crowned as the 3rd King of Tasmania with the royal title King Wilbert II.
King Wilbert II lived until his late 30's and in that time married and fathered 5 children, all of whom were born with two heads. With two heads came two brains, which meant Tasmanians doubled their I.Q. and became "Twice as Smart".
Through the years it became less and less socially acceptable to sport two heads and a decision was made to start removing one. This is the reason many Tasmanians sport a scar on their shoulder.
As Tasmanians travel the fair land of Australia and even the world, many people stop them and say, "show me your scar", and many are happy to oblige, being very proud of their heritage.
There has been a significant advantage to having one head removed in that we Tasmanians have had a choice as to which one would be removed and the result is a State of Australia with significantly more attractive and well presented personages of the majority of our residents. Many of our neighboring State's residents are not so fortunate and regrettably have to sport such an array of nature's disappointments.
The legacy of the two brains still lives on and the people of Tasmania are acknowledged almost world wide as being very bright, hence the slogan:
"Two Headed Tasmanians - Twice as Smart"
or the more familiar phrase in other lands
"Two Heads Are Better Than One"