A. This is going to take some time and dedication to remedy. I would recommend starting a very intense exercise program to burn off some of this excess energy that is being used in destructive behaviour. I would also recommend getting enrolled in a training program as mental stimulation coinciding with physical exercise will help to create a tired dog. A tired dog is a good dog.
I would recommend a consultation with a trainer to help design specific training regime and help to figure out the cause. Is it boredom or anxiety for instance. I would be happy to assist you if you would like a private consultation.
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