Last night we were broken-into by a literal, four-legged, cat burglar. Our landlady had two cats, and gave each away to different neighbours when she moved, locking the cat-flap so we wouldn't get visitors. But one of them must have a lock-pick...Jo was woken at 3:15am by something on our bed; it jumped off "too fast to be Noah" so Jo thought it was a rat (that's 3 o'clock-in-the-morning logic for you). I got up and went out the door, to discover a cat at the bottom of the stairs.
I shooed it out the cat-flap; but it tried to come straight back in. So I placed a cardboard box against the cat-flap; but it still tried to get in. So I pushed the kitchen bin up to the cardboard box, to add weight; but the cat kept trying to get in. So I wedged a chair against the box/bin. The cat still tried to get in - for ages - but it had no hope now.
It's just as well the post-man doesn't turn up till lunch-time; the back door is half glazed, and anyone turning up at it early in the morning would have found us barricaded-in!