Sure, go ahead, decide at the last minute that you're not going to participate in the debate. Imagine the enormous amount of work by a large group of people, and the money involved, at the university where it's going to be held. Imagine that they have gone to a tremendous amount of trouble - think of all that goes into putting on an event like this. And then, oh no, polls slipping, maybe we can stop all these debates from happening, I won't have to look like a putz and maybe no VP debate too, so that my lousy choice for veep won't have to ever show her face, or her grasp on any issue, ever.
Apparently, if Mr. McCain is confronted with a situation where he might look bad, he's not going to show up. And his puppet-veep can't take the heat, even remotely. They're a terrific pair to handle this country in crisis.