Don, engaged in the business of installing underground telephone lines, ordered three reels of underground cable from Pat to be delivered at Don’s place of business. Pat delivered reels of aerial rather than underground cable. When informed of the mistake, Pat told Don to return the cable, but he was unable to do so because of a trucking strike. The cable was stolen from Don’s regular storage space where it had been delivered. Pat sued for the purchase price. Who has the risk of loss? Explain.