No. This isn't on your time.
I believe that in the rules—and I should have brought my book with me because I can find it really quickly—the person who is sitting in the chair has to stay in the chair unless they're not available. So, in the event that our current chair is ill today, unavailable, you are the first vice-chair. First vice-chair is in the chair and has to maintain the chair position, unless, of course, they need to leave, in which case our second vice-chair would take the seat.
I don't believe—