In Wollerman v. Grand Union Stores, 47 N.J. 426, 429-30, 221 A.2d 513 (1966), the Court focused on the operator's duty when it displayed vegetables for sale in open bins. The Court held: When greens are sold from open bins on a self-service basis, there is a likelihood that some will fall or be dropped to the floor. If the operator chooses to sell in this way, he must do what is reasonably necessary to protect the customer from the risk of injury that mode of operation is likely to generate; and this whether the risk arises from the act of his employee or of someone else he invites to the premises. The operator's vigilance must be commensurate with that risk. Wollerman, supra, 47 N.J. at 429, 221 A.2d 513.