A metaphor is another way of saying something, for example from Guardians of the Galaxy. Quill mentions Drax with this metaphor:
"I'm going to have to agree with the thesaurus on that one." That is basically a metaphor.
Kafka believed that his father disapproved of him, the excerpt from "The Metamorphosis" that best suggests that Gregor's father views his son in the same way, is A. you women wouldn't listen. Gregor's mother has just fainted. His father has come back home, and Grete tells him that "Gregor has broken loose". His father misunderstands these words and says that he has warned both women. He understood, by Grete's message that Gregor had committed some violent crime, so it is clear that Gregor's father disapproved of him.
I say talk about economic policy. Argue for a position you believe in (be it Socialism, Laissez-Faire Capitalism, or whatever). I would start by using a anecdote that described the issue using the negative consequences of embracing the other perspective, immediately tarnishing the person's first impression of the opposite ideology. Then, I would involve logos by saying things like "just think about it, and you'll realize it makes perfect sense" and explaining my position as though it were a formula. Ethos would come into the picture when I mention the opinions of professionals and scholars who I've hand=picked to agree with me on the topic. Pathos has already been used in the form of the beginning anecdote, a "sob story" so to speak.
Hope that I helped!