Final answer:
Darrin's behavior is an example of the defense mechanism of projection, where he perceives his own feelings of anger in those around him instead of recognizing them within himself.
Step-by-step explanation:
Darrin is utilizing the defense mechanism known as projection. This occurs when a person refuses to acknowledge their own unconscious feelings and instead sees those feelings, such as anger in Darrin's case, in other people around them. This is a way for the ego to protect itself from experiencing anxiety related to acknowledging these unpleasant feelings.
There are various other defense mechanisms like reaction formation, where a person expresses the opposite of their true feelings, or regression, where an individual returns to a more immature behavioral stage. It's important to understand that these mechanisms operate at an unconscious level and are strategies used by the ego to defend against feelings that the individual doesn't want to confront.