Though I thought the trap flimsy in the extreme and likely to close far too easily we caught three mice in less than 12 hours (two together) with a bait of bread and nutella. As we are hopelessly sentimental about animals the first was called Monty. The second two just went straight outside to roam free (somewhere else). Hopefully that is the last of them. If so, may get one of those sonic thingys to deter any new extra residents.