On Saturday, Fox News did something that managed to shock Jon Stewart: The network apologized.

“I’ll be damned. It’s the rare Foxus contritus of legend,” Stewart said on Tuesday night’s “Daily Show” after a moment of stunned silence.

Then Stewart pondered just what triggered the mass mea culpa.

“What did they say that was so much wronger than usual that it required a network-wide apology?” Stewart asked. “How bad does bullshit have to smell before the odor is detected by people who live on a mountain made out of that substance?”

The multiple apologies were due to a guest on the network who claimed there were Muslim-controlled “no-go zones” in the United Kingdom and France. These zones, which do not exist, are under Sharia law and non-Muslims are not even allowed to enter, the guest said.

The Fox apology led to a piece about efforts here in the United States to ensure Sharia law is never imposed in places like Alabama, sometimes with surreal results.

Check it out in the clip above.