Punk'd

Mischa Barton witnesses a firing; Bernie Mac is accused of running a red light; the Ying Yang Twins are blamed for running through a gate.

Sophia Bush causes a commotion at a restaurant, Daddy Yankee is fined for swearing live on radio, and Kelly Monaco believes her car is wrecked.

David Boreanaz's wife finds glass in her salad; Kristin Cavalleri experiences road rage first hand; Terrell Owens is blamed for a tipped bus.

Kristen Bell is accused of stealing a dog; Bam Margera gets stuck in the middle of a robbery; Amber Valletta is accused of a hate crime.

Neve Campbell is approached by a lost child; Mike Jones witnesses a vicious beating; Danny Masterson is accused of stealing.

Ellen Pompeo unknowingly gives a large tip to a waitress; Shaun White is accused of causing a blackout; Serena Williams plays a role in tricking her sister Venus.