For those of us who work around barns (with small and large
animals, from horses to feral cats) this stuff is the bread
of life.

Damned if I'm going to bring all the stuff of that space into
either the super-market or home to the house-cats on my hands.

Though to be fair, it's probably in my body anyway--- I try
not to let the feral cats rub up against me any more than
I can avoid (but what can I say? They like me!). But I do
let the horses have their full bonding 'way' with me, but
I figure the carnivores who live in the house probably can't
catch the stuff of herbivores who live in the fields.