I have to keep the door closed when I am not in the sewing room. I found him one time with a long heavy string chewing. I didn't realize how long it was until I started pulling it out of his mouth. Maybe 24 to 36". We have just had him for a few months. But he is my shadow, and is quiet when I am sewing/embroidering. got him at the HS and he came straight to us and picked ME!