n the interest of that person. McCarrell v.. Cumberland County Employee's Retirement Bd., 120 Pa.Cmwlth. 94, 547 A.2d 1293, 1296 (1988); see also Leedom, 117 A. at 411 (a fiduciary relationship "is one wherein a party is bound to act for the benefit of another, and can take no advantage to himself'