I worked with someone was always last to leave...in the dark, alone...and I remember doing a course where this type of person was discussed. The advice given was that such a person is absolutely not more productive than the rest of us. A few years ago, just outside of Canberra,a young woman, about to be married, was in her classroom preparing for her relief teacher.

The janitor appeared out of the blue. He murdered her.

From then on the rule was NOT to be at work alone, and definitely never to be in the building alone.

There are sound reasons for just doing our job, and doing it well.