I'm a high school teacher. I teach economics, I could just leave a list of questions with my students asking them how a nuclear war would affect economies around the world. Ha.
And I have plenty of sick/personal days.
As a high school student, I would like to say a high school teacher who would take off a day for gaming is the coolest high school teacher I've ever heard of. Go for it.
You're lucky that you can do that, though. :glare:
My economics teacher gave us some stupid list of questions I need to answer on Tuesday, and that's too important for me to get sick and get out through the nurse's office for.

Seriously, why not go for it? I really wish students had personal days, however. We're not allowed to take off days, or else it's called skipping, and I don't like the thought of skipping, so I've never done it. Or are teachers not given personal days and you dislike the thought of skipping as I do?