Kate Moss is said to have hired an expert to help tame her pet dog.
The 39-year-old supermodel has sought the help of a French dog whisperer in a bid to calm Archie, a Staffordshire Bull Terrier cross, after he caused chaos for the nanny by ripping up carpets and attempting to escape while Moss is holidaying with her family in Ibiza.
A source told the Daily Mirror: "Kate's nanny told her Archie had been chewing the carpet, trying to escape and going off his food.
"He's very highly-strung for a dog, as he's a sensitive soul. He's taken this holiday really badly and is obviously pining for his family."
Moss - who is away with husband Jamie Hince and daughter Lila Grace - has been instructed by the pet psychologist to move Archie to Hince's parent's home until they return from their trip.
The source continued: "The French animal expert has been telling Kate exactly what to do to try to calm Archie down. Apparently, she should have given him special walks before leaving, and must be more assertive with him in future."
The source said: "Kate's been going back and forth between the dog whisperer and her nanny. She's spent hours on the phone.
"It's been a huge weight on her mind but at least she knows what to do for next time."
