Hi! I am new to this site and have a lovable 8 month old cockapoo named Bentley. I have had him for 4 months and he is completely housebroken However, he just started to guard his treats or anything that he is not supposed to have, like paper or tissues, and is beginning to snap when we try to get these items away from him. Any advice on how to stop him from reacting and snapping when he has these items?!?