At this point in the definition of stupidity, we can say that a stupid person is someone who, whether he or she has the need to have contact with others or not, has actions where he or she will always seek satisfaction or gain for himself or herself. In the graph, his or her actions will always try to be in quadrants I or B.

They are people who do not recognize that their rights have limits, and those limits are the beginning of the rights of others.

The example of Tom hitting Dick on the head is a frank stupidity since, unless Dick being a masochist asks Tom to hit his head; someone can think that another person likes to be hit.

In this hypothetical example, the hit on the head represents an action that in any scenario causes harm to others.

And stupid people will always have that stupid behavior.