From Vendela Vida’s interview with Susan Straigt in The Believer:
BELIEVER: You told me earlier that that your middle daughter, Delphine, told you about a boy in her class who touched a girl, uh, where she didn’t want to be touched. How’d you respond?
SUSAN STRAIGHT: I asked her what she was going to do if that happened to her, and she asked, with this trace of malicious glee, Can I hit him? I said, No, cause then you’ll get in trouble for fighting. And I showed her how to throw that mean elbow that catches them in the jaw and the ear. I gave her the line to say after: Oh, you startled me, and I’m sorry you’re bleeding now.