Frankie Muniz 'Walked Off the Set' of Malcolm In the Middle Over After 'Rude' and 'Disrespectful' Behavior

Frankie Muniz is recalling a moment when he stood up for himself on the set of Malcolm in the Middle. On Monday's episode of I'm A Celebrity ... Get Me Out of Here, the actor and race car driver claimed he was absent from filming two episodes of the comedy series because he once "walked off the set." "There were these two ADs, assistant directors, on Malcolm in the Middle [who] just frustrated the hell out of me," Muniz told his campmates. "I was never afraid to stand up for myself." "There's tw...