Being the cut-up that he is, actor Bruce Willis appeared on “The Late Show with David Letterman” last night with some kind of wind turbine on his head. Why exactly? Well, apparently so he could crack badly constructed jokes about Al Gore and his global warming documentary “An Inconvenient Truth”. Because, you know, what’s funnier than making timely jokes about a movie that came out over a year ago. Oh wait, I know! Pretending that it doesn’t bother you that a twentysomething actor is banging your ex-wife when you can’t bang a twentysomething without hearing, “That’ll be a hundred bucks, Grandpa.”

Editor’s Note: With “Live Free or Die Hard” opening this Wednesday, look for Bruce Willis to continue his antics on every talk show in existence this week. Next up: dressing up as woman with a voting machine on his head to mock women’s suffrage on “The View”.