Bats loose in the house?”
Try to isolate the bat in one room, put towels or a rug under the door. If it’s summer, open a window the bat should leave. If it’s daytime and the bat has been at rest, you should be able to walk up to it and put a coffee can over it so that you can trap it inside and remove it from the house. Remember, if it is at rest it cannot just jump and fly, it needs to warm-up first.