We have never had mice in the house we live in now, thank goodness.
The house we moved from had a few mice every winter. We set traps with peanut butter on a small cracker and they were gone in no time.
However, one time I walked out of the kitchen and running towards me from the living room and through the dining room was a mouse. Now I am not afraid of mice, but this one startled me and I screamed.
The mouse fell over and laid there. I was afraid to walk past it for fear it would get up and crawl on me, so I yelled until my husband came down to investigate. The mouse was dead. My DH said I probably gave it a heart attack when I screamed. I don't know if that is true, but I swear the story is.
If the exterminator doesn't get rid of it, call me. I can try screaming at it.