"Habitual hand washer", eh? Rather like Pete Hegseth , then?
Sophomoric reply, Charmion, which clearly demonstrates that you are, indeed, ignorant of the actual disease risk entailed. Do read up on it.

Not all small mammals & critters are "vermin" Senoufou. How then did your cats distinguish house mice and rats from chipmunks, water voles, baby rabbits, squirrels, field mice, shrews, miscellaneous reptiles & amphibians & etc?

being concerned about 'the little things' in life is no bad way to live

It become so when it crowds out or takes precedence over much more important and significant "big things", though, doesn't it?.