" Think of punching back and boundary-setting tactics as a flattened S-curve: you’ve accelerated up the slope of a negotiation and hit a plateau that requires you to temporarily stop any progress, escalate or de-escalate the issue acting as the obstacle, and eventually bring the relationship back to a state of rapport and get back on the slope. Taking a positive, constructive approach to conflict involves understanding that the bond is fundamental to any resolution. "

― Chris Voss , Never Split the Difference: Negotiating As If Your Life Depended On It