Dave Letterman was in fine form last night, as he adorably served a spanking to Fox News shoutytwat Bill O'Reilly:

Letterman: I'm not smart enough to debate you point-to-point on this, but I have the feeling about 60% of what you say is crap.

[O'Reilly raises eyebrows, doesn't smile]

Shaffer: Yeah, 60%.

Letterman: 60%. I'm just spitballing here.

Be sure to watch the entire segment, if only to appreciate the audience's polite, hesitant clapping whenever O'Reilly tries to say something patriotic. You can almost smell the crazy.

Big Show Highlight - Video File [Late Show]