This is terrifying news for Robin Thicke and Paula Patton's six-year-old son, Julien.

A new report claims that the "Blurred Lines" singer scared the little boy so badly during a visit, that Paula — who has a restraining order against her ex — and Julien's nanny were forced to call 911, and told officers they "need to intervene" while Robin waited to see the little boy at a Malibu park.

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Back in January, Paula requested to have the late Alan Thicke's son adjust their joint custody agreement to "monitored daytime visitation" — after Julien accused Robin of abuse to school officials.

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Me and my boy!

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"We have a court-ordered document that [reads if] the child doesn’t want to go with his father, he doesn’t have to go, and now it’s enforced. We need you to come and enforce the order. We have a restraining order, the person is within distance of the restraining order, he’s in violation of it currently," the nanny explained in a recording obtained by TMZ.

The Mission Impossible: Ghost Protocol star also previously revealed that Robin was physically and emotionally abusive to her during their 10-year marriage, which ended in Paula and Julien being granted the temporary restraining order.

"It’s agreed upon that he will not come to the park until we are gone, and then he comes. And this child is literally begging me and everyone else to call 911. Like, that’s how much he does not want to go," the nanny continued, adding that before Julien goes to see his father "he’s crying, he’s praying to angels, he’s trying to avoid it like the plague. It needs to end."

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Robin defended his actions in court documents and stated, "On a very rare occasion and only as a last resort, I will use light spanking, but it is consistent with the law — open hand on the butt. This is the type of discipline to which Paula and I agreed [on] during our marriage."

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It is unclear when this 911 call took place, but TMZ adds that the former couple is allegedly trying to agree on a custody arrangement.