There was a cat at one place I worked part time many years ago. The place was a surplus electronics joint, housed in an ancient hotel building downtown. It did have rats & mice, thus the cat. She had a special parts box on the checkout counter, with a lamp above it for warmth, and she would lay in that box all day and customers would pet her while they waited to check out. Her name was
wait for it....
Fart.
Because when she did, you would leave the area or choke. And she did, frequently. If customers said anything, the standard response was, "She's been here longer than any of us, so we can't say anything. Sorry."