Somehow I missed this lovely story in the Telegraph about how one Club la Costa timeshare owner got rid of his unwanted week after being told he'd be sued for unpaid maintenance fees if he handed it back.
Michael Grant returned to Tenerife for "one last time":
I saw a family being shown around the apartment block by a salesman, enjoying their free week's holiday while they listened to the hard sell. I waited until later that day and approached them. The company was going to charge the family £10,000, so I offered my week for £1,000. They bought it then and there.

Source: Daily mirror

M.R.