Christmas Eve is occasion for a late-night or midnight Mass.
The Pontifex Maximus offered one.
The Archbishop of Chicago conducted one at Holy Name Cathedral, and another the next morning for prisoners.
The Bishop of Green Bay was principal celebrant at St. Francis Xavier Cathedral.
Pope, Cardinal, Archbishop, Bishop, Parish Priest: all responsible for preparing the homily, for serving communion, for hearing confessions, for providing spiritual counsel.
Higher education borrows much of its organizational structure from the ecclesiastical model. The reader is invited to reflect on the extent to which presidents, chancellors, provosts, deans, not to mention the deanlets and deanlings, can serve for an academic year, or for years on end, without performing any of the duties of a professor.