Bad signs, good signs

It's a bad sign-- of incipient middle age, or senility, or old-dogness, or just falling into caricaturable absent-mindedness-- when seven years of "Tuesday-Thursday 1:30-2:50" schedules leave you so programmed that, on just the third day of class at your new university, you show up half an hour late to your own 1-2:20 lecture.

It's a good sign-- that your students are highly dutiful and responsible, or reliable and eager, or maybe even interested in hearing your wars of religion lecture-- that almost all of them are still there when you arrive.