Rat and Mice Poison - One part flour or sugar & one part baking soda (do not have to use both sugar and flour, just one or the other mixed with baking soda). Mix together and put out for rodents. Safe if the kids or pets get into it but makes rodents insides bubble up & explode. REGARDING SAFETY: The baking soda reacts with the stomach acid and causes bubbles, mice cannot fart to pass the extra gas therefore their stomachs explode. Pets &, kids CAN FART so any excess gas will be passed.