Justifying is no good if it explains away the absurdity. You must justify things so they make sense to the character but are still funny to the audience. Why is the boxing trainer advocating to stop throwing punches while in the ring? Because he read about Gandhi and now believes non-violence can beat anything.
This is a thought I’m trying to put together… but basically I think there’s a certain level of improv at which whatever problems you have are you problems, and you have to deal with those things in your life. There’s no drill or exercise or warm-up to help you get better at this thing that actually plagues you in real life. Listening, give-and-take, commitment, those are things that people have issues with for real. Accept them as real life problems, not just improv problems, and they’ll start to go away.
When asked, “What’s the best part of dating another comic,” one young man said: “Honest feedback about your set.” When I asked him what he felt the worst part was, he replied, “Honest feedback about your set.