• I don’t think it’s the best but in such cases, I personally take the minimalist approach.

    Keep all communications on official channels, and only send precise and to-the-point messages with as much brevity as possible (of course, make sure that your points are clear and that you are responding to their main queries as well). Make it as if they’re talking to an intelligent robot.

      • This works very very well for me as well.

        Make sure every point you make is objectively sustainable and don’t deviate from the truth. People hate having rock-solid bullet-pointed lists describing why they’re idiots chucked at them.