A company provides self-service paid drinks in the office pantry  After taking the drinks, the staff put the money in a special cashier box  The purpose of the researchers is to determine what factors affect the level of self-discipline of employees when they are unsupervised  A decorative picture is specially posted on the top of the cashier box, which is changed every week  Decorative pictures are sometimes flowers, sometimes a pair of eyes
The employees who work in the company have more self-discipline than the rest of the society
 An interesting phenomenon appeared: during the week with eyes, there was far more money in the cashier box than other pictures were posted