My ex would always yell at me for pointless stuff and make me cry in front of his friends. They didn’t even like him, they just tolerated him.
My sister’s friend would blame my sister for stupid things and try to say it’s my sister’s fault, not hers. She would yell at her too and try to pass it off as a joke.
(We are very much healing now 🫂 Not perfect, but healing)
When one member of the family has given up on joining clubs because their sister always joined the same clubs they did even if they hate that hobby and after a quiet word here and a quiet word there they get them kicked out of the club , which they then get bored with and decide it really is not that interesting after all and return to mocking that hobby.