I had a sinus infection last week, and my workstudy boss emailed me on Tuesday (which I had spent mostly in the campus health center) to let me know that I might not be able to get into the planetarium until a half-hour or so after my shift was supposed to have started on Wednesday. I emailed back that I didn't know if I'd be well enough to show up the next day, but was going to see how the drugs rode through the night and would let him know in the morning, and he emailed back saying, in nicer words, "No, take the week off. We don't want your filthy plague." Admittedly, it's only workstudy, but still. Some bosses get it. :)