#sidle in

There was a knock at the door. It should not be possible for a knock to sound surreptitious, yet this knock achieved it. It had harmonics. They told the hindbrain: the person knocking will, if no one eventually answers, open the door anyway and sidle in, whereupon he will certainly nick any smokes that are lying around, read any correspondence that catches his eye, open a few drawers, take a nip out of such bottles of alcohol as are discovered, but stop short of major crime because he is not criminal in the sense of making a moral decision but in the sense that a weasel is evil--it is built into his very shape. It was a knock with a lot to say for itself.