Sales negotiation
A client drops a contemptuous remark about the offer. The salesperson feels anger rising; they breathe in, pause, and respond on the facts rather than on the tone. Self-mastery avoids the confrontation that would have cost the sale.
At the first physiological signal (heat, quickening), slow down: a breath, a sip of water, before any response to the emotional trap.
Protects the relationship and prevents the concession or breakdown dictated by pride.
Visible regulation (an overly long silence, a strained voice) can betray fragility and expose you.