Keep the message proportionate
Use the shortest explanation that still tells the truth about the event, impact, and current position. For a message about how to decline repeated unpaid overtime, use this factual base: describe the request or behavior, its frequency, and the effect on delivery, health, or privacy.
Give timing that can be trusted
Give a realistic date, a simple option, or a direct yes-or-no question and avoid vague promises such as soon. Propose a workable channel, schedule, scope, or escalation route and document the agreement. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Close the loop without drama
Do not retaliate, shame a colleague, or refuse essential duties without explaining the operational alternative. Use HR, a representative, occupational health, security, or legal support for harassment, discrimination, threats, or unsafe work. A calm ending is more credible than a warning, a grand gesture, or language designed to provoke a response.