My co-worker had come in one morning and found a dead mouse in his cubicle. We hadn't known about mice in the building before that. He didn't want to deal with it so he sent off a ticket to facilities. Their response was pretty quick. It was only 5 minutes before the IT guy came with a new mouse.
We live in the boonies, wildlife all around. The cat just chased a garden mouse into my office closet right next to my feet. If you need me, I will be writing stuff while sitting on the roof of my car for the next couple years.