I was walking from my office to the mail cabinet. Out of the corner of my eye I noticed a little brown shape run into a room. I am a twenty first century guy, so I knew what to do. I went back to my office to get my phone so I could take a picture or video. You see the result below. Unfortunately I think the mouse escaped and I actually just took a picture of piece of card.
I was actually rather brave. If you read a lot of science fiction then you know that things that scuttle around in the corner of a persons vision can be very dangerous indeed. Another person at work also saw the mouse, so I didn't dream it up.