Well, it didn't leave!! About and hour ago as James and I just sat down to watch TV a bat came flapping by. GROSS!!
James HATES flying things (bird, bats, big bugs- he has good reason if you've ever heard his homeless nights stories), but he bravely went in search of it and found it finally upstairs hanging in a curtain. He trapped it in the curtain and threw it out the window. He was a sweating mess when he was done. But he got the bat out of the house and I'm proud of him for it. :)