Just to take a less black and white approach to working on Sunday - the subject can be quite ticklish in the workplace, for various reasons.

The university at which I worked decided, many years ago, to open up various bits of itself - libraries, refectories, computer workshops, etc. - on Sundays. The managers of these areas (of whom I was one) discussed the ins and outs of it thoroughly with the staff. The overall conclusion was that, whilst no-one was actually jumping for joy at the prospect, they accepted that the students would welcome the opportunities brought by the increased hours. The chance to earn more money - i.e. double time on Sundays - was actually of marginal value.

But what was interesting was the dynamic within the group of staff. Those who, in their heart of hearts, probably didn't want to work on Sundays, agreed to the change in hours. This was perhaps because they wanted to appear to be part of the team - or perhaps because they didn't want to appear selfish to their colleagues. Who knows. In the end, there were no problems, a few grumbles here and there, and Sunday working went ahead.

For me - who also participated in the Sunday working, by the way - it was interesting to see how peer pressure played its part in the debate and the final decision. So - when we say that no-one is obligated to work on a Sunday if they don't want to - just remember that peer pressure to do so can't be ignored. To take a decision not to work unsocial hours when all around you are doing so may not be as easy to make as you think.