The doggy destroyer

One for the dog owners… any ideas how to stop a dog being destructive for no good reason? We’ve been through the “I have teeth and must destroy things!” period and Megan’s been fine for months, but all of a sudden she’s discovered the joys of eating things again. If we leave her for as little as an hour we’ll come back and find something shredded: so far the total includes an address book, stacks of newspapers, a dozen magazines, three books, a phone book, the Yellow Pages, a catalogue and a CD case.

She knows she’s done something wrong – and we know before we see it, because she hides when we come home – but I’ve no idea what to do about it other than hope it’s a phase she’ll grow out of and hide everything in the meantime. Any ideas?