No, no, you underestimate my brother.
2 seconds sound clip from the Harvey (1950) movie soundboard.
You can hear this line at 01:00:38.176 in the Blu-ray version of the movie.
Quote context
[...]
- I want to observe the expression on his face when he talks to this rabbit.
- They tell each other everything.
- I said, yes, he talks to him.
- But, Doctor, don't go out there. You'll regret it if you do.
- Nonsense, Mrs. Simmons. You underestimate me.
- No, no, you underestimate my brother.
- Don't worry. I can handle him.
- You can handle him? That's what you think.
- Myrtle Mae, see who the stranger is in the bathtub.
- Sounds funny, but I'll miss this place. I guess I'll miss a lot of things around here.
[...]