Question of the Day!

How long have they been there? If they've just come for dinner, I suppose you could yawn and mention that you have an early morning, etc. "Oh it's been a wonderful evening and I wish we could talk all night, but I have to be up in the morning. I hope we can do this again soon."

Did they move in with no intention of leaving ever again and do they make messes that they don't clean, refuse to turn off lights and generally use more than their share of electricity whilst not contributing to the costs of their rampant and unbridled consumerism? If you know how to give them the boot, please share.