Uuugghh, this is sooo frustrating.......we live in the country and do not have a cat because we are allergic......and so field mice have been finding their way into the WALLS of our house this winter, in the walkout lower level!!! My husband has been setting traps and we have caught a few, but I want to stop them from getting in!! I don't want to put poison down, because I don't want them to die when they are in the actual wall........the smell would be terrible!!! Any suggestions?? I am at the point where I may just call the exterminator since this has been an ongoing problem, but I really didn't want to spend a fortune!!