"Prudent person rule" means that in all activities connected with savings banks operating under this Act, all officers, directors, employees, and agents of any kind of a savings bank must exercise the judgment and care under circumstances then prevailing that persons of prudence, discretion, and intelligence exercise in the management of their own affairs, not in regard to speculation, but in regard to the permanent disposition of their funds, considering the probable income as well as the probable safety of their capital.
205 ILCS 205/1007.95