Midweek meetings were quite stressful/busy for School Overseers (as it was my experience). Never sure if everybody would show up for their talks. To fill up the gaps, the SO regularly needed to walk around (or sending someone) whispering (begging) for volunteers.
Same for (last minute) changes about the anouncements on the good ol' service meeting. Could give you an excuse to make little jokes to someone also and surely could make you feel important, since it had to do with Jah's spritual food