Have you ever experienced coming home and found your house to be a complete disaster? Shoes all over the place and chewed up, furniture all torn up, and even your door or walls broken? And there in the corner of your house is your lovely and adorable dog as if telling you; sorry master! Your dog really does not know what he has done. You the master needs to find out why your dog acts that way. There are 3 main reasons why dogs chew.