Two months ago I purchased a GPS device and associated service plan from SPOT. Today, upon trying to cancel the service, the customer service representative informed me that I had accidentally enrolled myself into a 1 year, $250 contract and that I was unable to cancel. He told me that if I blocked the monthly charges against my credit card that they would report the debt to a collections agency. I was initially upset but soon realized it was a great opportunity to talk about ethics in software engineering.