Do you think you have a mouse in your house? My dog is a Bichion mix and is a very good mouser. Not only will he find if you indeed have mice but will find the exact routes they take and the holes they come out of. This will make it easier for you to set your traps and/or poison for the best results. I will ask for a small charge for this service, the charge will depend on how big the area or house is. I am not a licensed exterminator so that is why it is cheap. If you have any animals ie, dogs, cats. Other animals will distract him from his job if they are not put up.