I am trying a ready made honey corn flour blend from Walmart and equal parts of baking soda. I saw a video where someone did an experiment and it worked for him. He pointed out that rats and mouse can't fart so they die.I forgot to take up another peanut (what I use for bait in the snap trap), so I put 3 spinach seeds in it. We'll see if that gets any interest, if another one gets in.