The house mouse can be found in a wide range of urban and rural buildings. Mice live in nests, which are often built in your home or business, especially during winter. They follow all the pipe work and only need approx. 5mm gap to get through (pencil size), they eat almost anything and contaminate your food with urine and droppings. Mice carry germs and bacteria and when comfortable, breed at an astonishing rate. You won't just have one.