A landlord in Tacoma, Washington, found out that her house had been stripped bare after a fake ad was placed on Craigslist inviting people to "take whatever they wanted for free."
Link (with video clip of the trashed place, and yes, this had gone 'round the Net a few days ago) - via Boing Boing
I don't know whose dumber, the people who robbed her blind, the person leaving their door unlocked, or trying to blame this on a craigslist prank.