Season 6, Episode 10: "The Race"

Maybe he's just very, well, Red.

A Communist? Don't you think he probably would have told me?

Well, does he wear bland, drab, olive-colored clothing?

Yes, he does dress a little drab.

He's a Communist.

Hey, look at this.

"Exciting, uninhibited woman seeks forward-thinking comrade.

Appearance not important."