You do not know the facts, so have several seats.
have several seats
idiomA directive for someone to calm down or modify their attitude, and to refrain from speaking about an issue in which they have limited knowledge or experience.
Origin
disputed originFrom have a seat (and take a seat).
She tried to lecture me on my own project, so I told her to have several seats.
When the critic began offering unsolicited advice on a subject he clearly misunderstood, the team collectively suggested he have several seats.