There is a youtube poster who tests various kinds of mouse and rat traps, including antique ones. Very interesting, to me. He has a channel he calls 'mouse trap Monday'. He recently tested a product called "Rat X" which claims to only kill the rodents, not pets, wildlife, etc. Supposedly it makes the rodent lose its desire to drink water and it goes into its burrow and dies. He tried it on rats and then dug up the burrows a few days later to find rat carcasses. I haven't tried the product but it sounds like a good solution with less chance to find its way into the food chain. Anyone else try this? Here is a link