While tending the hand wound of an old Texas rancher, a doctor struck up conversation with him and pretty soon the topic turned to Sarah Palin and her bid to become Vice-President of the United States. The old rancher said: "Palin is what I call a post turtle." Not being familiar with the term, the doctor asked him what a "post turtle" was. The rancher said: "When you're driving down a country road and you come across a fence post with a turtle balanced on top, that's a post turtle." The doctor …