Best thing ever happened in one of my classes today. So the professor wanders in a couple minutes after start time, slams a thermos down on his desk, and goes "There's more pressure in my sinuses right now than there is at the bottom of the sea. This thing's full of NyQuil. I'm gonna drink it while I teach and when your heads are replaced by swirling rainbows, I'm canceling the rest of class."
We were out of there a whole seventeen minutes later.
Things like this make me love school.