14. If a Commissioner is in any way directly or indirectly interested in any contract or proposed contract to which the Commissioners are, or would be, a party and is present at a meeting of the Commissioners or of any committee of the Commissioners at which that contract is the subject of consideration, that Commissioner shall as soon as practicable after the commencement of the meeting disclose that fact at the meeting and shall leave the meeting and not take part in any deliberation or decision of the Commissioners or committee with respect to that contract.