Difficult conversations become more manageable when you prepare for both content and relationship. Identify the observable facts, your interpretation, the impact, the outcome you want, and what you still need to learn. Choose a private setting and enough time for dialogue when the issue is sensitive.
During the conversation, state your concern calmly, invite the other person's view, and listen for interests beneath fixed positions. Acknowledge valid impact without agreeing to inaccurate claims. If the discussion becomes disrespectful or unsafe, set a boundary, pause, or use an appropriate manager, HR, or formal process.