Oh, thank you, kind sir. You're so very, very kind.
5 seconds sound clip from the Reefer Madness (1936) movie soundboard.
You can hear this line at 00:15:43 in the Blu-ray version of the movie.
Quote context
[...]
- I know you can't study on empty stomach.
- He will.
- May I?
- Oh, thank you, kind sir. You're so very, very kind.
- Mary, before we do that math, how about reading some of this? It's swell.
- Listen.
- It is my soul that calls upon thy name.
- How silver-sweet sound lovers' tongues by night.
[...]