VOLUNTARY WAIVER OF SENIORITY. In the event of a layoff, the Employer and the Union may mutually agree to allow individual employees to waive their seniority rights for the purpose of the layoff. With the written approval of the Employer and the Union, employees may, at their option and without prejudice to seniority and other rights under this Agreement, waive their seniority in the instance of the Employer instituting a layoff. Such waiver, if authorized by the employee, shall not be construed to be a waiver of any other right under the contract. An employee who has been laid off under the provisions of this paragraph will be subject to recall pursuant to the procedures set forth in this section and may not subsequently bump a less senior employee prior to his/her recall.