Swearing was simply NOT DONE in my ancestral home.
Lou relates a story about a Clue game being played by Bonnie, a very proper young lady who was always conscious of her position, clothes, actions and diction, Lou, and miscellaneous unremembered others. Bonnie, upon losing to her younger sister, said in frustration, "Who the Hell has Miss Scarlet?"
The instant the words were out of her mouth, she looked up in sheer, utter horror to Mom's face as she baked chocolate chip cookies or brownies (believed to be Dad's favorite for YEARS because he feigned enthusiasm for them so persuasively, while secretly abhorring them...).
Mom just laughed. Thus, another family classic was born.