@GeekinKorea Also, it’s absurdly easy for a class of 3 students to no-show. I had a 9am Writing class that did it a few times: it was 3 guys who partied and slept in a lot. My policy is simply, “If half the class doesn’t arrive within 30 min, class is canceled, no make-up.” @GeekinKorea (Though actually, in practice, the one time that one guy showed up alone, 20 min late, we stayed for an hour, going over homework and discussing some issue in the textbook, before calling it a day.)