A member of a board committee may not participate in the discussion and may not vote on an issue before the committee in which the member has a substantial personal or financial interest or such participation would create or appear to create a bias. Each committee member who is ineligible to participate in the disposition of an issue by reason of this section shall provide a concise, factual statement of the reason why the member is not participating prior to the commencement of discussion of that issue by the committee.