Great stories, Tarqs and Diane. I really must get round to doing something interesting I can share on here!
I've just remembered something that happened four or five months ago. One morning, my wife announced that she'd gone to the bathroom during the night and had been greeted by a bat flying around the landing. She hadn't wanted to wake me with the news. When I asked if she was sure she wasn't dreaming, she replied that she didn't think so. This doubt was enough to convince that the event had never happened. Two nights later, she headed up to bed at around 10 p.m., leaving me downstairs watching golf or something. About 30 seconds later, she returned, rather white-faced, to say the bat was flapping around the landing again. I went up to check and there it was, like something out of a horror movie. My wife told me to open the front door and then go back upstairs and chase it out. "Oh, yeah", I responded "like it's going to immediately to fly downstairs and out the door just to help us out?"
It did. We then checked everywhere to make sure a whole batch of them weren't roosting somewhere but the house was clear. We guess that the bat had somehow got into the house and couldn't get out until I obligingly opened the door. As I said, this was around 5 months ago and we haven't seen anything since so we presume it was a one-off visit. I'm rather glad about that...