Although we often do get questions from people in the real world this question actually is a lie. It didn't happen to Graham it happened to me. And of course when I told Doug about this he throttled me and suggested that perhaps I was stupid for logging into a game using my Facebook credentials at all and doing so was a violation of all sorts of security risks.
In any case I did it. And lots of people do it because for example in Candy Crush, which I admit to playing at the gym while I'm on the elliptical. It's the only way to keep track of your current session settings. So every time I log into Facebook I see my current status on Candy Crush. And I'm not sure I want people to know I'm playing Candy Crush while I'm at the gym.
The answer is simple however although Facebook, in general is not your friend. In this case it does offer the ability to limit which applications can post what to your Facebook wall. To do that you go to the settings on Facebook and control which apps have access to which features as they work with your Facebook credentials. We have an article linked on our website which shows you how to limit what Facebook can do. And of course this came about because I was looking for some way to limit what Facebook could do on my own personal wall. If you're checking my Facebook wall hopefully it will no longer indicate which level of Candy Crush I'm currently playing.http://fieldguide.gizmodo.com/stop-apps-from-posting-to-facebook-on-your-behalf-1742862110?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+gizmodo%2Ffull+%28Gizmodo%29