It would be difficult to get either of you angry enough at each other to start fighting in the first place. What would probably work best is if we engineered some sort of misconstrued semantics debate that caused one or both of you to become incensed at the idea that not everyone agrees with everything you say, and then take cover and watch the defensiveness and passive-aggression overflow. Then, of course, the natural feminine tendency toward back-patting reconciliation would prevail and you all would hug and rub your boobies together.