Been using the same basic set-up as the one with two ramps. I put a foam plate suspended on a wire that touches both sides of the bucket when plate is flipped. Put a little peanut butter on both short sides and it will reset when a mouse walks over to get the pb and falls in. Google bucket trap for the plans. Have gone to my property to find as many as ten in the water filled bucket. When I take the mouse soup out and dump it it doesn't stay there to long. That's why I didn't want to use poisons, afraid I'd kill the other animals on my property that don't bother my things. The little guys have ruined a few sleeping bags, have stolen toilet paper, ruined a tarp, made a nest in the hopper of my '28 Economy, and even decided to take up residence in the exhaust pipes of a few vintage m/c's that are stored there.