Spoiler You’re a bad man, Charlie Brown. The man who once voiced the lovable “Peanuts” protagonist was set to be sentenced for several probation violations Friday in a San Diego court — and went on a foul-mouthed rant furious enough to make Lucy van Pelt scared. His not-so-good grief led to a judge deciding he should undergo a mental competency evaluation. “I hope you drop dead of a heart attack!” Peter Robbins, 58, yelled at the judge in a crazed courtroom clip captured by CBS San Diego. During his bizarre rant, the whiny, wild-haired child star screamed at a prosecutor, yelled that he was “firing” his defense attorney and constantly interrupted the mild-mannered judge, who repeatedly replied to Robbins’ outburst with a simple, “Thank you.” When a guard tried to escort Robbins out of the courtroom, the washed-up actor cried out: “He’s rubbing me up, he’s got a gun! Run for your lives, he’s got a gun, run for your lives!” Robbins pleaded guilty two years ago to threatening his girlfriend, and also stalking a doctor who performed a breast-enhancement surgery on her. He was initially sentenced to five years probation, and ordered to entered a live-in drug treatment program. But he recently got arrested again for several probation violations — cutting off his GPS bracelet, failing to complete domestic violence courses and drinking alcohol. On Friday, he abruptly went back on his guilty plea, insisting he had “not committed any crime.” “I never threatened this woman in order for it be to a criminal threat,” he said, referring to his ex-girlfriend. “She has to believe I would kill her. I wouldn’t kill her. I have never had any violent behavior!” His sentencing ultimately got delayed in lieu of his attorney's request for a mental competency, which the judge approved. Robbins faces up to three years and eight months in a state prison whenever his sentencing happens. Deputy District Attorney Brenda Daly, when asked by CBS San Diego if Robbins is a threat to society, answered: "Yes." When the raving Robbins was 9, in 1965, he started starring as the TV voice of Charlie Brown, the hapless hero of Charles Schulz’ beloved “Peanuts” comic strip. He voiced Brown in specials through the late ‘60s, including “A Charlie Brown Christmas” and “It’s the Great Pumpkin, Charlie Brown.” But his acting career trailed off after that, with only two brief TV appearances in the early ‘70s and no other roles since then, according to his IMDB profile.