I had a coworker that had bats take up residence in his attic and he wasn’t allow to remove them. That was all fine and well (not really because of the horrific noises) until they gnawed through the drywall and started pouring into his house. I can’t get the image out of my head of him swinging a tennis racket at them as they flew around his living room. It was right out of an 80s comedy except he had to live with the results. In the end, he just moved because he couldn’t do anything else. From that point forward, I decided that I would tell no one about bats if they wormed into my home and would make sure they wanted to leave.