It's her fault.
3 seconds sound clip from the Cinderella (1950) movie soundboard.
You can hear this line at 00:28:31 in the Blu-ray version of the movie.
Quote context
[...]
- What's it say, Cinderelly? What's it say, huh?
- I don't know. He said it's urgent.
- Maybe I should interrupt the, uh, music lesson.
- Sing, sweet nightingale high...
- You clumsy! You did it on purpose.
- Girls, girls. Remember, above all, self-control.
- Yes!
- Cinderella! I've warned you never to interrupt...
[...]