David Letterman likes to make people think he's just phoning it in. And I'm starting to wonder if it's not just an act. Defamer caught him recycling his jokes last week. His monologue on Wednesday (Apr. 2) was nearly identical to his monologue on Thursday (Apr. 3).

Seriously. He just changed up the wording of a few jokes, and some of them he repeated word-for-word. This isn't like his on-going jokes about the "hookers in Times Square" or the "squirrels in Central Park" or "John McCain is so old that...".