Should I sneak home early? All teaching done, prep in the bag, other job tomorrow. What do you reckon?
Do it! In most cases, I'd say your own real life is more important than your job, but in your case that doesn't apply because teaching is the most important job in the world - but if you've got everything done, make the most of it. All teachers deserve a little time to themselves to rest and relax once in a while.
I'm actually a university lecturer/nurse