What argument does the other man use to convince the narrator to team up with him? What lesson do you think the narrator learned by the end of the evening?

To determine the argument the other man uses to convince the narrator to team up with him, we would need more context about the specific story or situation you're referring to. Please provide more details so that I can better understand the context and provide a more accurate answer.

As for the lesson the narrator may have learned by the end of the evening, I cannot speculate without information about the story or situation you're referring to. Can you please provide more details or clarify the specific story or situation you're asking about?

the other man = ??

the narrator ??

What are you writing about??