1. When you are in office with loads of work assigned but still dont feel the need to switch windows (from TBHP to Work Related) anymore, no matter who is on the prowl to monitor.
2. When refreshing stock prices takes a back seat and refreshing posts on a thread becomes the front runner.
3. When you mind spending minutes posting a reply on a thread like this when your boss is waiting for you at the other end of the table expecting you to submit the status.
4. When all the auto news from people become stale and you get the feel that you knew it from the time you learnt tying your shoelaces.