I LIKE THIS BIT from the New York Times story on Bush’s colonoscopy:

In Mr. Bush’s case, Dr. Tubb performed a neurological examination, including testing his knowledge of the day and time. In such an examination, doctors also typically ask patients who is the president of the United States, but White House physicians leave that one out.

And I don’t want to go all Katie Couric on you, but if you’ve been putting this off, you should go ahead and get it done. It’s not just diagnostic: it’s preventive, as removing the polyps prevents cancer. Having seen more than one person close to me die of cancer, I promise you — having somebody look up your butt is a small price to pay for avoiding it.