Reason of Being Destructive:
Boredom
Studies have observed that bored dogs are more likely to become anxious, depressed and destructive. Your bored pets will chew your stuff, tear things up, destroy toys and other items, and generally find other inappropriate ways to keep themselves amused. But there’s no reason to let your dog get bored when there are so many ways to prevent it.
If your dog is bored because you spend too much time away from home, some of the ways that you can prevent him from becoming destructive are similar to those used for separation anxiety:
Leave a radio or the TV on low volume, or try talking to your pet using a camera;
Stop home and see your dog on your breaks at work;
Hire a pet sitter to take your dog for a walk during the day;
Get interactive dog toys and place them around the house. Puzzle toys with treats inside is the easiest and cheapest way for eliminating boredom in dogs.
Adopt another dog so your dog has some company;
Take your dog for a very long walk or run in the morning before you go to work so your Fido will be tired and sleep during the day.
In my case, I cannot give my dog the best time hence, he becomes destructive. I may revisit my way too as his human mommy to understand why he's destructive.