An Occupy Wall Street protester shocked Geraldo Rivera by dropping an f-bomb live on Fox News Sunday night.

All things considered, Rivera's decision to do his entire show live from Zuccotti Park -- including a segment on missing baby List Irwin -- went better than many would have expected.

"My goal here is to occupy everywhere possible," a protester in a black shirt and white tie told the Fox News host. "I think what you see here, Geraldo, is a large amount of people that have been deeply and profoundly fucked by the system."

"Oh!" Rivera groaned. "That's wrong. You guys swore to me no cursing, right? No cursing. That's lame."

After the commercial break, Rivera said he regretted the outburst.

"Again, ladies and gentlemen, I really apologize for what that one person did, you know, with the obscenity. We're really-live live so we couldn't bleep it in time. We will in terms of the rerun. That was so lame and I hope it doesn't mean we won't be able to come down here and cover this any more."

Watch this video from Fox News' Geraldo At Large, broadcast Oct. 23, 2011.

Watch this video on iPhone/iPad

(H/T: Mediaite)