Otters are extremely bad at doing nothing. That is to say that they cannot, as a dog does, lie still and awake; they are either asleep or entirely absorbed in play. If there is no acceptable toy, they will, apparently with the utmost good humor, set about laying the land waste. There is something positively provoking to an otter about order and tidiness in any form, and the greater the state of confusion that they can create about them the more contented they feel. A room is not properly habitable to them until they have turned everything upside down; cushions must be thrown to the floor from sofas and armchairs, books pulled out of bookcases, wastepaper baskets overturned and the rubbish spread as widely as possible, drawers opened and contents shovelled out and scatters. An otter must find out everything and have a hand in everything; but most of all he must know what lies inside any man-made container or beyond any man-made construction.