I walked out - resigned, that is - a month ago from my latest job, as a marketing writer in the asset management division of Bank of New York Mellon in London, before the job resigned on me. My boss who was not an easy person had become unhappy with my performance, unfairly I thought, and then made it difficult for me to continue in the New Year to the end of my probationary period. I am having to repeat a mantra - simple thoughts about what happened, a string of positive thoughts overall - every time I have a new thought about the experience, for new thoughts risk opening things up in an unproductive way. I have a tendency, in difficult situations, to think negative thoughts and these are to be warded against here. Writing this is a new thought, though an oddly gentle one, and I will bring it to a close by substituting the mantra for it, and, where I would normally put a full stop at the end of this sentence, say in its place the string of words