psst do you actually see them eat the poison the reason I say that is we had chipmunks in our garage and to get out they would chew though the bottom of our new garage door. and we put out poison bait for them to eat and they were gone in less then 2 days for all 3 5oz. packs.They were saving it for winter so they were just playing with it; I bet that the mouse/rat is doing the same thing. Then you put a mouse trap that will kill him the next time he comes out. then get him to come out of his hole and it will be problem solved