The case of the dog that did not bark in the nighttime: Dick Cheney sinisterly (is that a word? it is now) does not repeat a story he has told at least 67 times:
After a sustained and rollicking ovation that inspires a rare smile with both sides of his mouth, Mr. Cheney starts into a variant of the same talk he has delivered literally hundreds of times....
He skips the bit about how he had been the lone congressman from Wyoming — “It was a small delegation, but it was quality,” which he has told at least 67 times as vice president.
Obviously, there's dirty work afoot.