With my sister-in-law's family, I became enemies. But because she had to tell her mother-in-law what she had to do for the public interest, she accepted.

If what you say is true, then I advise you to push it gently to keep your husband away. The reason why we put it off euphemistically is because, after all, we are still a family, and there is no need to make a scene to let outsiders see jokes. They are shameless, so we have to face them, right? The reason why you and your wife are encouraged not to handle it for her is to let them know what karma is and what a causal cycle is. If you do it for them without saying anything, then they will take it for granted. You owe them and you should! Don't spoil them so much, let them continue to know nothing about the directors. If the in-laws are eccentric, twelve cows will not be pulled back. Many in-laws are that kind of thing!