This took an interesting turn. The STPCD and its vague do as much as needed is a total pain and used against us too often. I would argue the whole 40 hours a week as being reasonable too; I think a 35 hour week is more than sufficient. 8 hours a day was simply an arbitary figure that came about as a result of campaigning by Robert Owen to have people work no more than 8 hours per day. His slogan was “Eight hours labour, eight hours recreation, eight hours rest.” We now know we can be happier and more productive working fewer hours. The reality is we need more prep time in the school day. We all need to be allowed a life and shouldn't be expected to give our lives to a job. We need to not feel guilty or be made to feel guilty for not working in the holidays. As for other careers, I feel strongly it is time for massive changes across the board. It is ridiculous in the 21st century that people are working so many hours and having so few holidays.