Now then, sometimes he's talkative, laughs out loud for no reason and throws stink bombs.

8 seconds sound clip from the Mr. Topaze (1961) movie soundboard.

You can hear this line at 00:38:46 in the Blu-ray version of the movie.

Quote context

[...]

- It may be a fact, but it's inexplicable.

- Please allow me to explain, madam.

- Huh! You will explain. I'm listening.

- Shh! The Baroness is listening.

- The boy is growing fast.

- So?

- Physically, he is wavering between two different moods.

- Now then, sometimes he's talkative, laughs out loud for no reason and throws stink bombs.

- This is what I would define as the active mood.

- In the second mood, madam, he stares at me, appears to be listening intently, but in reality, he is asleep with his eyes wide open, daydreaming, and if I ask him a question, he falls off his seat.

- Be careful, it is you who are daydreaming.

- Madam, I speak in the boy's interest, for the eyes of those nearest do not always see everything.

[...]