A traveler, between flights at an airport, went to a lounge and bought a small package of cookies. Then she sat down and began reading a newspaper. Gradually, she became aware of a rustling noise. From behind her paper, she was flabbergasted to see a neatly dressed man helping himself to her cookies. Not wanting to make a scene, she leaned over and took a cookie herself.

A minute or two passed, and then came more rustling. He was helping himself to another cookie! By this time, they had come to the end of the package, but she was so angry she didn't dare allow herself to say anything. Then, as if to add insult to injury, the man broke the remaining cookie in two, pushed half across to her, and ate the other half and left. Still fuming some time later when her flight was announced, the woman opened her handbag to get her ticket. To her shock and embarrassment, there she found her pack of unopened cookies! How wrong our assumptions can be.