I also have been plagued with a bat this summer. It has taken up residence behind a shutter on my house. I know it is there because I see its distinctive droppings on the steps below it. I always sweep up the droppings wearing a mask. I remember the lesson from medical school about the spelunkers who became sick after exploring the bat infested caves. I take a garden hose and squirt behind the shutter to drive it out. It always scares me when it comes flying out. I would be terrified if I was was trapped in a room with it. I do like having the bats around to eat the bugs (especially the mosquitoes), just not that close.
