My foster dog, Corky, is a resource guarder. I've had him one week. I keep toys in a toy box when not in use and food is fed in the dogs' kennels and removed after about half an hour. I have two older dogs of my own who are having to adjust to Corky's needs. Here is the problem. Corky's latest trick is to immediately dump all of his dry food out into his kennel when we put it in with him. He only eats a bit of it. After half an hour he and the dish can come out, but then there are lots of "snacks" left behind for anytime he wants to go into the kennel and relax. I wonder if I should be cleaning the dumped food to avoid any dog aggression -- maybe another dog will walk by his snack-filled kennel or even go in it -- and to teach him that I own the food?