While suturing a cut on the hand of a 75-year old Texas  rancher, whose hand 
was caught in a gate while working cattle, the doctor  struck up a 
conversation with the old man.  Eventually the topic got  around to former 
Texas Governor George W. Bush and his elevation to the  White House.
The old Texan said, "Well, ya know, Bush is a 'post turtle'."  Not being 
familiar with the term, the doctor asked him what a 'post turtle'  was. The 
old 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 old man saw a puzzled look on the doctor's face, so he continued  to 
explain. "You know he didn't get there by himself, he doesn't belong  there, 
he doesn't know what to do while he's up there, and you just want to  help 
the dumb shit get down."