Clevinger is portrayed as a character who holds strong beliefs and principles, often leading him into heated arguments. When these discussions escalate, he becomes overwhelmed, struggling to breathe and fighting back tears, illustrating the intensity of his convictions and the emotional turmoil they cause him. This reaction highlights the depth of his commitment to his ideas, painting him as a passionate, if somewhat irrational, individual.

His unwavering dedication to his principles makes others view him as crazy, suggesting that his fervor may isolate him or conflict with the more pragmatic perspectives of those around him. This reflects a common theme in "Catch-22," where the absurdity of war and bureaucracy often clashes with personal beliefs, leading to a sense of desperation and emotional conflict. Clevinger’s character serves as a vehicle for exploring the struggle between idealism and the harsh realities of life.