Mouse in the house

Unfortunately I didn't have my camera with me. How I wish.
I got to work this morning, and a colleague coming down the stairs in the opposite direction, enthusiatically related a story about how he was followed up the stairs by a little mouse. Not many believed him, as it is a new fairly sterile building. Also assuming a certain amount of exaggeration. But later, I spotted the little'un sitting by the wall. He (or she) just watched me get my phone out. Snap. Move forward slowly to get a closer one, and off he went faster than the phone would work. If only I had my camera. I now know where he lives, so there is always another day, maybe?