Answer:
The frustration-aggression hypothesis
Explanation:
The frustration-aggression hypothesis is a psychological social theory. It explains the origin of aggression from frustration. This hypothesis is used in scapegoat and hate crime. The frustration occurs when the source of the economy gets down. This hypothesis was developed by John Dollar ed at Yale University.
The aggression is always projected on small groups of people which is called the scapegoat. Frustration always leads to aggression in a person. Thus here in the above context when Sam interrupted Paul several times he got frustrated. At last, he turns his frustration into aggression. When Sam enters the room he threatens him for punching on his face and will beat him hard. This is the example of frustration-aggression theory.