The British Columbia Business Institute (BCBI), because of its vast purchasing power, arranged a special plan through which its students could purchase new computers at a greatly discounted price. BCBI took orders from a number of students, along with a deposit, and then bought that number of computers from A. Pwee Ltd., the manufacturer. When the students came to BCBI with the balance of the purchase price, a specific machine was selected and sold to them by a serial number, and it was then theirs to take away.

By Friday afternoon of delivery week, all but three students had picked up their machines. Jackson had stopped by and completed the purchase arrangements, and a particular machine was identified by number as hers. But because she was going out of town for the weekend, she arranged to pick it up on Monday. The two others, Pollock and Kline, had not yet showed up.

Unfortunately, sometime on the weekend, despite reasonable care by BCBI, thieves smashed into the storeroom and stole the final three computers. Assume the thieves cannot be caught.