P's husband, John Boyd, was present in D on April 27, 1970, for the purpose of transacting business. While he was there, an armed robber entered and placed a pistol to his head and told Blanche Murphy, the teller, to give him the money or open the door or he would kill Boyd. Blanche Murphy was behind a bulletproof glass window and partition. She did not comply with the demand but instead fell to the floor. The robber then shot Boyd in the head and killed him. P sued D alleging that D owed Boyd, a business invitee, the duty to exercise reasonable care for his safety and that they breached this duty when they refused to accede to the robber's demands. P also alleged that S was negligent in failing to instruct its employees regarding the course of conduct which would be necessary under the circumstances of this case to prevent exposing customers to unreasonable risks of harm. The trial court dismissed P’s complaint. The appeals court reversed. P appealed. P contends that a business proprietor has a duty to his invitees to honor criminal demands when failure to do so would subject the invitees to an unreasonable risk. It is claimed that this duty arises from the relationship between a landowner and a business invitee.