My boss had left a phone message for me to call him back urgently. I started to panic thinking I had done something wrong! That must have been the reason for the message. Throughout the day I could not stop thinking about it: I imagined he would be angry with me, would shout at me and tell me I was being fired. I could not concentrate on my work and made several mistakes, which of course confirmed that he was right in firing me. I put off returning his call until the end of the day. By then I was a nervous wreck. It turned out he wanted to congratulate me on my latest piece of work. I hadn’t been fired…this time.