Jerry Seinfeld and Jon Stewart poked fun at Dr. Marcus Bachmann, husband of Republican presidential candidate Michele Bachmann, for his views on "curing" homosexuality Wednesday night on 'The Daily Show.' But, when Stewart took things too far, Seinfeld put him in his place with a solid smack across the face.

Seinfeld admitted that gay jokes at Bachmann's expense came easily, especially after watching a video compilation highlighting the doctor's voice and somewhat flamboyant dance moves. "Of course I'd love to say Dr. Marcus Bachmann buys Brawny paper towels for the packaging," he said.

But Stewart crossed a line when he used profanity. "Or that he s**** Pinkberry," he said.

"No!" admonished Seinfeld, soundly slapping Stewart. "No! That was for going blue."

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