John McCain finally deemed it fit to sit down across from Dave Letterman on The Late Show, three weeks and countless monologues milking the senator's absence later.

So how did it go? Did McCain, fresh off the final debate last night, take Letterman's gloating jabs and "roll with dem punches," as the kids might say? Or did he grit his teeth and blink a lot in that "I'm rolling with the punches but secretly I'm about to hulk out on you, gap-toothed man" sort of way?

Let's find out:

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Riff is going to the dance to make nice with Bernardo, so this Thursday America will be able to witness the ultimate mambo as John McCain makes his long-awaited appearance (probably) on The Late Show with David Letterman. Unless he backs out again, of course.

The question is: Will Letterman take the Bill O'Reilly route and go all soft and sweet once he has his opponent in the chair? Or will he continue to berate McCain and hope the audience he's already lost during the debacle is less than the numbers he's bringing in for his on-air beat-down? Let's take a look at the McCain/Letterman time-line and place our bets accordingly:

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Michael Cera is a funny guy, but I'm not sure if I believe his "oh shucks, I'm totes just this normal teenager uncomfortable in my own skin" routine. Sure, it probably gets him tons of poon, and it worked for him when portraying chubby-cheeked, cousin-loving George Michael Bluth, but don't you get the sense that he hams up his awkwardness during interviews? Especially since he's already demonstrated that he is pretty self-aware about his whole shtick and seems like a smart cookie and generally acts like he knows what he's doing with his cute little hoodies and vaguely Canadian accent.

Here is Cera on Letterman last night, discussing his role in the upcoming film Nick and Nora's Infinite Playlist:

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Wednesday was so bomb. Late night programming returned, which was quite a relief because now we don’t have to think about how hopeless our lives are and can just watch celebrity interviews instead.

And when Leno returned on Wednesday, he made a joke about how he was writing his own monologue, which was funny, ha, ha, until the Writers Guild of America was like, “Hey, guess what Mr. Funny? That violates our agreement. You’re no better than Carson Daly.” To which Leno was like, “Do you see how I act with my guests? Where do you think I started?

Even without writers, The Tonight Show is still beating David Letterman's Late Show; Leno's mediocrity is that appealing.