One of the famous Norman Rockwell Saturday Evening Post covers showed a woman buying a Thanksgiving turkey. The turkey was on the scales and the butcher was standing behind the counter. The customer, a lady of about sixty, stood watching the weigh-in. Each had a pleased look, but a quick glance at the painting shows nothing unusual going on.

Then we look closely. The butcher is pressing down on the scales with a thumb while the woman is pushing up with a finger. Both would resent being called thieves, but neither saw anything wrong with a little deception.