Knock on wood, I've not had rodents where I've lived for the last ten years. Before than I lived in a more rural area and the standard Victor mouse trap was efficient and usually resulted in clean kills. Call me heartless, but I've never had much compassion for any of the rodent family anywhere close to being inside buildings. If there was a live trap around that was as effective I might go that way these days, but I never had any issues with the Victor traps.