If you're a casual employee and don't have any sort of paid sick leave you either turn up or forgo the money (and potential future work). There are also those w

If you're a casual employee and don't have any sort of paid sick leave you either turn up or forgo the money (and potential future work). There are also those who pride themselves on never taking sick leave and "soldiering on", but invariably infect their coworkers. Here's some survey stats: http://www.nsf.org/newsroom_pdf/Flu_in_the_workplace_(final).pdf http://www.nsf.org/newsroom_pdf/Flu_in_the_workplace_(final)...