Make room for the other version
Ask what the other person understood before assuming that you are arguing about the same facts. For a message about how to ask a coworker not to touch you, use this factual base: describe the request or behavior, its frequency, and the effect on delivery, health, or privacy.
Correct the record precisely
Correct only what you can support, acknowledge any real impact, and propose a practical way to prevent repetition. 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.
Agree on a testable next step
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. Do not recruit an audience, publish private evidence, or turn a misunderstanding into a campaign about character.