2 Redneck Ditch Diggers

There was two guys digging in a ditch and one sitting in the shade drinking lemonade. One of the guys turns to the other and says,"Why are we stuck down here digging while he's up there sitting in the shade drinking lemonade?" The other guy says, "I dunno I'll go ask." So he climbed out the ditch and ask the guy, "Why are we stuck down there digging in the ditch while your up here drinking lemonade in the shade?" "Well," the guy replied, "it's about intelligence. Here I'll show you." he said. So he put his hand in front of the tree that he was sitting under and said, "Here, I'll put my hand here and you hit it as hard as you can with the shovel." So the guy swings as hard as he can with the shovel and the other guy moves it. "Oh , I get it he says so he goes back down into the ditch and says to his friend, "You see, it's about intelligence I'll put my hand on top of my head and you hit it as hard as you can with the shovel."