A country doctor is suturing a laceration on the hand of an old farmer.

Old man: "All you need to know about politics is that barrak 0 is a post turtle."

Doctor: "Oh? What is a post turtle?"

Old man: "When yer driving down a country road, and ya come across a fence post with a turtle balanced on top? That's a post turtle. Ya know he didn't get there by himself, he don't belong there, he cain't get anything done while he's up there, and you just want to help take the poor thang down."