The No. 1 way to respond when your in-laws are rude to you, says Harvard-trained etiquette expert

There are many environments where it would benefit you to check any people-pleasing tendencies at the door: work, romantic relationships, even friendships.

Holidays at your in-laws’ house is not one of them, says Sara Jane Ho, a Harvard-trained etiquette expert. Ho is the founder of the finishing school Institute Sarita, host of the Netflix show “Mind Your Manners,” and author of an upcoming book, also called “Mind Your Manners.”