I had an unexpected visitor last night. A BAT. It came down the fireplace chimney, and flew through my home. I have a homemade cap on the chimney that covers it, but he must have crawled underneath it. The bat went in my library and flew to the top shelf of the bookcase. I ran in, opened the window, threw up the screen, ran back out and closed the door. I think he went out the window, but since I did not see him go, I am still on the watch.