Basically. Discovery generally happens outside of the courtroom unless a motion is brought by one of the parties to enforce some procedure.

So if it's a case about a car accident.

> Them: Is it true you fucked Chad Smith in high school?

> Me: objection. Exceeds the scope of discovery. Privacy. To client: Don't answer the question.

If they want to the question answered, they have file a motion seeking an order that my client answer the question — to compel response.

If they continue asking such questions, you inform them that they're conduct is harassing and that you will seek a protective order and sanctions if they don't stop. If they refuse, you meet and confer and then seek the order if it's not resolved.