Even after five years of working in libraries, three and a half of them with benefits, there are some things I still haven't gotten used to. This was the actual dialog I had recently with our assistant director:
AD: Oh my golly! You still have 3 personal days that you haven't used! You have to use them before the end of the year.
me: I thought personal days were for non-medical emergencies, like car problems, or taking the cat to the vet.
AD: They are, but we don't get paid enough anyway, so we have to use them up.