Ban a shed
Ban a shed, the St. Louis pronunciation of banishéd, may be what needs to be done.
Suppose you buy a crate of cashew nuts. Now suppose these cashew nuts came from Brazil, but before they were exported, a mouse got into the crate. If, once you get home with it, the mouse escapes from the crate and gets into your shed, then your shed will have Brazilian hair in it, assuming of course, that the mouse is not one of those hairless strains of mice.
Rats Mice are so afraid of cats men that scientific results can't reproduce.
Hey, put on your running shoes because Caroline is ready to go.