A few years ago my wife convinced me to let a co-worker of hers move into our basement to get away from a domestic situation that is going bad. It was supposed to be for a couple of months. After 3 months she asks if she can stay on until for another 3 months, when she will be leaving the city. We agree at the nominal cost of $200 month to cover some of our extra costs (gas, hydro, etc.)
At the end the bitch steals the $600 out of the kitchen cupboard (shame on us for keeping it there - I know) on her way out the door and disappears to England to meet some guy that she met online. Karma will pay her back.