I imagine this is how the entire Bush administration will take their leave. "Yep, we made the whole world a friggin' mess and now it's all yours. Enjoy!" Then they'll climb back into whatever crypt they were raised from and disappear.
According to the Wall Street Journal's "Washington Wire" blog, when Hannity asked if Rumsfeld could suggest any advice to Robert Gates, who will succeed him, he responded that "I don’t have any advice for him."