No meal leftovers here = no mice. Even cooking scraps are hung in a plastic bag on a cupboard, 5ft from the floor.
When I first started working in a pharmacy, the wife of the Chinese restaurant chef did the shop cleaning before I opened up. One morning, I enter the back of the shop and was confronted with crazed little lady ranting at me 'Bigamist! Bigamist!'.
I start thinking 'bloody country towns and their gossips', then she points down to the cosmetics section, where I see the 'Bigger mouse! Bigger mouse!' groggily dragging a trap.
A replacement CO2 cylinder of a Soda Stream sent him to rat heaven.