Leaving and entering the house showing a lot of emotion (waving wildly at puppy, making a big fuss over him) will get puppy hyped up, or confused.   

Not knowing what to do with his heightened emotional level, he will begin chewing on anything he can find.  Try to keep things low key when you leave the house, and always say the same words, like “I’ll be right back.” 

Then when you get home, don’t immediately make a fuss over the puppy and greet it. Instead, put down your bags, take off your coat, basically get settled, and THEN turn your attention to your puppy for a few minutes of low key attention and bonding.   

Of course, one of the easiest ways to stop your new pup from becoming a one-dog wrecking crew in your house is to give it a chew toy.  There are many safe, well designed chews, some of them durable, some of them edible. 

When he must chew, he will chew on something that is meant to be used for chewing.  Nylafloss is a piece of nylon rope that helps to clean puppy’s teeth while he is releasing his emotional energy.