This isn't just 1 shift. She has already self-certified for a week. Has a doctor appointment tomorrow. She has a health condition which isn't currently affecting her, but is pretending it is. I'm really annoyed at her. She says she just wants a break off of work, but don't we all!? She has holiday dates that she has already booked, so it's not like she gets no breaks from it. She doesn't get sick pay, so that's the only 'okay' thing about this. I think it's really bad for me to encourage her/approve of this and think saying she can't be at home during her shift time would be a good idea. Opinions?