Yeah, I used to regularly get them pottering in my garden. This particular one must have been adventerous and just came crashing into the livingroom. Don't mind admitting it, I bloody pooped myself when it happened.
I was sat on my own in the living room a few years back having just watched a scary film and was feeling a bit on edge when our cat (who had been outside all night) jumped up and scrabbled through the open window, scared the life out of me!