Y ou’ve just spent two hours shopping at your local mall and are now heading out into the parking lot, searching for your car. After walking up and down two lengthy aisles of parked cars with no success, you must now decide whether to keep walking or return to the mall and ask security for assistance. Continuing to search is a waste of time if, in fact, your car has been stolen. On the other hand, you may have simply forgotten its location and will suffer some embarrassment if mall security must locate your car for you. What do you do?