One of our dogs had such a problem with separation anxiety that she chewed up the door jams, broke through the window and door screens, tried to chew the chain link fencing (if we tried to contain her). Learned early on to just let her outside and then she did pretty well. We just couldn't leave her in the house, caged up or gated on the veranda. Ahhhh my poor baby....put her to sleep last November at the ripe age of 17 years old.....a long life for a Chocolate Lab.