Spray the food with a product made from "applebitter." You can pick is up at any pet supply. That's how I trained my dogs not to bite, chew and eat things they are not supposed to. WOrks like a charm and will not harm the dog. Don't use mousetraps. They have to potential for injuring the dog. But if you do I would suggest sticking your finger in one first just to see what the dog will feel.
