Labs are notorius for chewing they grow out of it evenually. First year our yellow stripped all the bark off the trees made a rain gutter downspout look like a twisted alumnum can, chewed our hot tub gazebo legs into toothpicks, made the cable Tv cord into his own play toy. We laid sod down one day came back and he had torn up every piece of sod and thrown it around the yard looked like a bomb went off, forget christmas lights. Can you say Marley. Any way Dudley is probably the most mellow good natured dog we,ve ever had the gentle giant we call him he is a 160 lb lab.