Catfights & Fistfights: Reality TV's Biggest Battles

Audrina vs. Lo! Diddy vs. Aubrey! From flying cranberry juice to flying fists, see how ugly things got on your favorite shows. By Serena Kappes

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DEREK & SHANNON VS. THE DWTS JUDGES

It was the rumba that almost caused a rumble when Dancing with the Stars partners Derek Hough and Shannon Elizabeth had a meltdown after the judges gave them 8's (out of a possible 10) for their dance. On the next night's results show, Shannon bawled as Derek defended his now-girlfriend's honor with a tirade against Bruno, Len and Carrie Ann. "What about the heel leads, the feet coming off the floor, the horrific, demented lines people are making out there – and you're giving them 9's and 10's! Are you kidding me?!"