Charlie is sarcastic, arrogant, and incredibly judgy to those around him. Whenever he sees a mistake in another person, it makes him feel SMARTER! Despite his criticizing behavior, he seems to make a lot of mistakes himself. And whenever he does, he hides them—or pretends it was “merely a calculated test to see if you’d correct it”. To put it simply, he acts like a “know-it-all”. (The main character’s co-worker)