I have to put in another plug for the cat method. While letting one cat out the other night, another dashed in with a still live mouse in its mouth (not the first time this has happened). We didn't manage to catch it that night. However, one of the Slaughter Sisters seems to have taken care of it for me. The mouse, now deceased, was lying right next to my chair this morning, all ready for me to have for breakfast. Good kitty!!