Build a shared "third story"

Open with a neutral framing both sides could accept, not your version of events.

Why it works

Opening with your story ("you let me down") invites an immediate counter-story, and the talk becomes a contest of versions. The "third story" describes the difference itself, the way a neutral observer would — which both people can sign onto. That shared starting point turns two opponents into two people facing the same gap together.

How to do it

1. Frame the opening as the difference between your views, not as your verdict ("We see this deadline really differently").
2. Describe the situation as a mediator might, without smuggling in your conclusion.
3. Then invite their view of it before laying out yours.

Evidence

The "third story" is a specific opening technique from the Harvard framework, consistent with mediation and negotiation practice on reframing disputes around shared problems. (anecdotal)

A practitioner technique drawn from negotiation experience rather than controlled study; a forced or insincere neutral framing can come across as manipulative if your conclusion still leaks through.

Common mistake

Dressing up your own version as a "neutral" opening ("Let’s talk about why you dropped the ball"), which the other person instantly recognizes as your story, not a shared one.