Pitt also said when he was shown the script, he told the Coens he did not know how to play the part because the character was such an idiot: "There was a pause, and then Joel goes...'You'll be fine'."
Pitt also mentioned when shown the script that he didn't know how to play the part because the character was extremely unintelligent: "There was a lull in the conversation, and then Joel assures him, 'Don't worry, you'll handle it well.'"