I am currently babysitting my mother's chihuahua/border terrier dog and she stays indoors with me and my cats. She has her own separate eating area with her bowl of wet food and little water dish. She is missing some teeth (she is around 15 years old) and so we give her a lot of soft or wet foods. Well, now my cat is sneaking into her area and eating all of her wet food! It's so frustrating and I find the dog trying to sneak off in my room with a few kitty kibbles in her mouth. I give my cat canned food and try to keep him away, but he will still find a way to bully her and eat it.