Meeting a stranger to have an argument

Back when I was in my mid or late 20's, I was around this guy's house. He was this guy that I had known years ago, but had just met again. Anyway, I was talking about intellectual topics and he was listening in astonishment and said that he had never ever known anyone talk like me before, not ever. He tried to persuade me to come downstairs and have an argument with his girlfriend. Apparently she was always outarguing him and his friends so he wanted me to come down to outargue her. I declined. But I can imagine if I'd agreed. I'd come downstairs, and say "hi, I've come downstairs for an argument". She'd reply "no you haven't". I'd say "Yes I have"! That would have been such a laugh. Dunno why I declined!