Oh, that's just Brutus.
— Mr. Ages (Arthur Malet)
2 seconds sound clip from the The Secret of NIMH (1982) movie soundboard.
You can hear this line at 00:38:43.404 in the Blu-ray version of the movie.
Quote context
[...]
- More specifically, he's the leader of the rats.
- No one has ever seen the Owl! And lived to tell about it.
- Please, could you take me to see Nicodemus?
- Yes. Yes, but for your sake, I hope you're telling the truth. Come on.
- What about the large rat at the entrance? I can't go back there. I can't.
- Jonathan, your wife has come at last.
- Perhaps now I can repay you for your kindness to me.
- Yet Mrs. Brisby will serve the rats of NIMH far more than we her.
[...]