@GeekinKorea In these kinds of idiotic situations, I declare attendance “optional” (i.e. everyone on the class list who attends normally is counted as present). If admins cannot plan more than a day ahead, it’s not my problem, it’s theirs—and they should sort it out. @GeekinKorea (But if students knew more than a few hours earlier—say, a day or two—and didn’t bother to notify me? Well, technically it’s on them, and they know this if they were listening on Day 1… and 2… and 3.)