Say What Anderson Cooper?

So Anderson Cooper threw down this challenge to the greatness that is Keith Olbermann's Ego last night:

I could "take" both of them (Chris Matthews & Keith Olbermann) in an arm wrestle.

Have any of you seen how painfully skinny Cooper is? Keith Olbermann's Ego could just sit on the little pipsqueak and crush him. And Matthews could just bore him to death.