There was a story like this that aperson posted on CL and said the same things. Turns out it wasnt their house the the owner was away. She got home to her house being trashed.
Heres the story from CNN.com.
"TRICIA MANNING-SMITH, KING CORRESPONDENT (voice-over): The outside of her home is trashed. The inside is nearly gutted and covered in graffiti. Laurie Raye is devastated.
LAURIE RAYE, VANDALIZED HOMEOWNER: But it hurts. I was attached to this home because it used to be my mom's.
MANNING-SMITH: A phone caller alerted Raye to the destruction. She walked through her garbage-strewn front yard to find her house dismantled.
RAYE: Including the front door. This used to be a very nice vinyl window here.
MANNING-SMITH: From the light fixtures to the hot water heater, everything is gone, including the kitchen sink. Her neighbors later reported seeing strangers hauling stuff away from her home, seemingly looking for salvage material.
RAYE: Because in the ad, it said come and take what you want, everything is free.
MANNING-SMITH: This is the ad, posted on Craigslist last weekend. Please help yourself to anything on the property. An off- duty Tacoma police officer noticed the Craigslist ad last week, inviting people to enter the unlocked house and take whatever they wanted. Later that same officer noticed the ad was flagged and canceled after a reported burglary at the house."
if someone was nice they may call the cops to have them check it out.