A few months into the new job and I was feeling pleased I had not fallen out with anyone. I had scrupulously maintained excellent relations with previous flash points such as the HR Director and had even heard noises that I was being considered for a place on the Social Committee. Even an unfortunate incident, which culminated in a cracked laptop screen, elicited sympathy rather than the expected tutting from the IT guy.

So far, so good. It didn’t last. The problem arose one afternoon. I had been for a swim at lunchtime and although feeling virtuous I was also feeling tired.

By four o’clock I felt my eyes shutting and my head nodding. I may be getting old I thought, but not that old. Falling asleep at the desk is never a good look in an office, particularly while you are still on a probation period.