Sunday Duties and Attendance

Usually, under my ministr(ies), there has been a rule -- and I know that many Churches have something like it -- that Church officers with a task which takes them out of Church (say, creche, Sunday School, or security) must be in the Church service one Sunday a month. This is theologically, personally, and practically important. OBSSERVATION: Some go so far as to say that, once a month, Church officers should be relieved of tasks within the Church -- say, as projectionist.