Staff shortage

We seem to be running out of staff on our group recently. We have a few vacancies anyway and now a couple of supervisors are off sick. I had to do a double shift yesterday and then resume after 12 hours rest. In 3 days I have worked over 42 hours, whereas normally it would be only 24 hours over the 3 days. Should get some nice overtime though, unless the dreaded taxman takes most of it.