Every film I've ever worked on, and that includes 'Braveheart' and 'Trainspotting,' I've always witnessed a director having a breakdown. Every director will have a day, without exception, where they just can't do it anymore, they don't know what to say to their cameraman, their cast. It's the sign of real, physical exhaustion.
My career was always about working with people, and understanding issues and problems and helping them to solve those issues and problems. How you deal with people - that's what diplomacy is all about. So while I'm not a career diplomat, many of the skills I had seemed to directly translate into the diplomatic arena.