I was ten minutes late for a dental appointment last week. It had been a fraught journey. I explained to the dentist that I had been stuck at a level crossing, held up behind a learner driver and then couldn’t find a parking space. This was all actually true, although, if I’m honest, I was also slightly over-egging it. To give reasons for our actions is very normal. And, our brain can fire out these reasons all day long. We give reasons in order to be reasonable. If I had been asked why I was late, and replied, “No reason”, then I would have been unreasonable.