Maybe the judge should have tossed druggie Cameron Douglas’ jet-setting mom in the slammer, too — for poor parenting.
Glamorous globetrotter Diandra Douglas — the ex-wife of Academy Award winner Michael Douglas — chose to vacation in Mallorca, Spain, rather than stay with their drug-peddling son after a judge put Cameron under house arrest at her Upper East Side town house, friends and family told The Post.
“It’s moves like this that make you just want to shake Diandra. She just didn’t pack up and fly home,” a longtime friend of the Douglas family told The Post.
A pal of Cameron added, “She left [him] with no parental supervision.”
PHOTOS: CAMERON, DIANDRA & MICHAEL DOUGLAS
“Most of us thought the right thing to do would have been to tell the judge, ‘Keep him in jail until I get back,’ ” the friend said.
Records show Cameron, 31, was under the watch of paid guards at Diandra’s $9.2 million mansion on East 65th Street when — fewer than two weeks after his arrest — his girlfriend, Kelly Sott, tried to smuggle heroin into the house in an electric toothbrush. Both were arrested.
Last week, Cameron was sentenced to five years in prison for peddling crystal meth.
“In Diandra’s defense, if she’d been home, she never would have let Kelly in the house,” one family friend said. “But the fact is, she never came home.”
The twice-divorced and now-single Diandra, 54, also is mother to twin 6-year-old boys, born to a surrogate, and a 5-year-old daughter adopted from Kazakhstan.
In a collection of scathing letters to the court asking for leniency for Cameron, lifelong friends painted Diandra as a hands-off mom more concerned with partying, working the charity scene and spending time with her boyfriends than raising her son — who was pawned off on nannies, bodyguards and sympathetic family friends.
Virginia-based artist Nancy Hersch Ingram, who has known Diandra since Diandra was a child and is Cameron’s godmother, wrote that Diandra was immature and raised her son “with enormous privilege and little structure.”
John Rickard, a childhood California friend at whose home Cameron spent much of his time, said in his note to the judge: “Frankly, she was not very motherly at all, [she] didn’t spend much time with Cameron.
“My family was very supportive and loving, while his was not,” Rickard said. “[Cameron] was more an accessory than a son.”
A longtime friend of Cameron told The Post: “I think Diandra means well. She’s enamored with the idea of motherhood. But being a mom is above her pay grade. It’s just not natural to her.”
Patricia Sullivan-Webb, daughter of screen star Barry Sullivan, has known Diandra since before Cameron was born and put it more bluntly in her letter to the court.
“[Diandra] was too self-involved and uninterested in raising her son,” she said.
Cameron, now a part-time actor and DJ, often stayed with Webb and her brood, and Webb said Diandra once told her: “I don’t like this child. I don’t think I even love him.”
Family friends fear that things are much the same with Diandra’s younger children.
Shortly after Diandra brought adopted daughter Imara home to New York, she took off on a long vacation, leaving the baby with a family friend, according to one of the child’s caretakers.
“I think children just over-tax her,” one caretaker said.
Diandra complains about Imara having an Eastern European temperament, several friends told The Post, and lightens the blue-eyed girl’s hair because she thinks it isn’t blond enough.
Meanwhile, just before her surrogate gave birth to twins, Hudson and Hawk, in March 2004, Diandra nearly bailed out of the deal when she learned the babies would be boys.
“Diandra had her heart set on a little girl,” hedge-fund manager Zack Bacon, the boys’ biological father, told reporters in 2005.
A “disappointed” Diandra immediately “began arranging for the adoption of a third infant, a baby girl,” behind his back, Bacon said.
Bacon and Diandra were engaged but never married and, after a nasty custody battle, now share the boys.
She got her adopted daughter through baby broker Orson Mozes, who’s now in jail for running an adoption scam.
In her own letter to the court, Diandra shocked friends when she referred to Cameron as “the only blood relative I have left in this world.”
“It’s as if the younger children mean less to her because there’s no biological connection,” one fed-up pal said.
Equally upsetting to family friends is Diandra’s insistence on taking the younger kids on weekly visits to jail to see Cameron.
“It’s as if they’re going on a field trip to the museum — it’s just strange,” said a confidante of Cameron. “It also makes it hard for Cameron to speak his heart to his mother because he has to put up a front for the little ones.”
Diandra has told the court she makes the trips so that the kids can “reconnect” with their sibling.
At Cameron’s sentencing, Manhattan federal Judge Richard Berman blasted both Diandra and Michael Douglas, saying that the letters revealed “problematic parenting” and that the pair had been “absent,” “distant” and “immature.”
Michael, whose hit flicks have included “Wall Street” and “Fatal Attraction,” has publicly copped to being a lousy dad when Cameron was young.
He has since embraced his new family life with wife Catherine Zeta-Jones and their two kids and reconnected with his troubled oldest son.
“Michael and Catherine have created one of the most warm, positively functional and nurturing environments for Cameron,” said longtime friend Ann Dexter-Jones, mother of Samantha, Charlotte and Mark Ronson, to the judge.
Diandra Douglas didn’t respond to requests for comment.
In her letter to the judge, she laid much of the blame for Cameron’s troubles on Michael Douglas and said that while she wasn’t “a perfect mother,” she “did the very best I could at the time with the tools I had available to me as a young mother.”