Months ago I read about a company that rented laptops for people to make payments on and eventually own. They installed spy software so they could locate the laptops had the user not made a monthly payment. Employees were spying on users while they were having sex and other things. This wasnt on MBPs but they still managed to not notify the user.
http://www.wired.com/threatlevel/2012/09/laptop-rental-spywa...