Duckworth
So for context, at my old high school, we had a Vice-Principal whose name was Mrs. Duckworth. As you can imagine, there were a lot of jokes circulating around the school about her name, and one student decided to make sure she knew.
The student walked past her in her office, and you guessed it, he said, “Quack Quack.” She didn’t take it very well, and the next thing we all knew, the student was actually suspended over it without even a disciplinary hearing.