I just realized Easter is next week.
Which means Good Friday is next week. Which means there are no classes Friday. Which means that I can't do the lectures I planned to do next week. Which means I have only a few days to think of something for Monday's lecture.
See, my lectures are organized by week. They are very highly structured. Normally, I do have a "short week" lecture I fit in around the holiday near the end of semester, be it American Thanksgiving or Easter.
But Easter moves around the calender. And in the six years I've been teaching, this is the earliest it's been. Usually, I have one, maybe two, weeks of lecture before I hit the short week.
Excuse me. I have to go think of something to talk about.