The Dayton Country Club offered its members various social activities. Some members were entitled, for additional payment, to use the golf course, a coveted amenity. Golfing memberships could not be transferred except upon death or divorce, and there was a long waiting list in this special category; if a person at the top of the list declined, the next in line was eligible. Golfing membership rules were drawn up by a membership committee. Magness and Redman were golfing members. They declared bankruptcy, and the bankruptcy trustee sought, in order to increase the value of their debtors' estates, to assume and sell the golfing memberships to members on the waiting list, other club members, or the general public, provided the persons joined the club. The club asserted that under relevant state law, it was "excused from rendering performance to an entity other than the debtor"that is, it could not be forced to accept strangers as members. Can these memberships be assigned?