Eh, they are always making their own opportunities as well. That’s their job and they don’t have anything else to do. They chew, burrow, dig, etc. Making a home vermin-proof must have really been something back in the day.
That’s why cats were invented. 
Cats are the solution to like 87% of life’s problems. And the remaining 13% I can live with.
A good mouser is a beautiful thing. It occurred to me that those metal tins that saltines and cookies and all sorts of other foods were provided with and stored in had a utility, they weren’t just decorative. Mother nature doesn’t care, and is trying to kill you, was a lot more readily obvious in those days.
True, very true.
Concur. ::nodding::