Back in the days when I was teaching I kept on getting set up with the sister of one of my students. My parents and I always nixed the idea.
One day this student was giving me a hard time and I threatened to call his parents. He just laughed in my face and said, “you’re just hoping that my sister answers the phone cause that’s the only way you’ll ever get to hear her voice”.
(No, I did not call his parents.)