Carriage Way was a real estate development of approximately 80 houses and 132 apartments. The property owners were members of the Carriage Way Property Owners Association. Each year, the association would take care of certain open neighboring areas, including a nearby lake, that were used by the property owners. The board of directors of the association would make an assessment or charge against the property owners to cover the cost of this work. The property owners paid these assessments for a number of years and then refused to pay any more. In spite of this refusal, the association continued to take care of the areas in question. The association then sued the property owners and claimed that they were liable for the benefit that had been conferred on them. Were the owners liable? [Board of Directors of Carriage Way Property Owners Ass’n v Western National Bank, 487 NE2d 974 (Ill App)]