CEB has republished my article Excessive Interrogatories Violate the Rules of Civility, Appellate Court Says at their website as, "The Risks of Serving Too Many Interrogatories".
The article is about two important but subtle rules of civil discovery in Estate of Huang (D2d4 Aug. 17, 2021) no. B307671 (nonpub. opn.). The first is that you cannot submit the same interrogatory twice: if you don't like the answer (or lack of an answer) you got the first time, you had better move to compel — do not ask the question again. The second is, if you are going to ask a lot of questions (here, 723 of them), you had better be sure they are necessary. Here, they were found to violate the local rules of civility.
Bonus Appellate Tip: Carefully consider your requests for sanctions. If you win a discovery dispute and are awarded sanctions over $5,000, your order is now immediately appealable. Which, in this case, reversed the discovery victory.