- I've been watching you for some time, MacDonald.
- Yes sir. It used to make me kind of nervous.

7 seconds sound clip from the Christmas in July (1944) classic radio play.

You can hear this line at 00:11:59 in the radio play.

Quote context

[...]

- I gotta win it! I gotta!

- You sent for me Mr. Waterberry?

- Close the door MacDonald.

- You had a good lunch, MacDonald?

- About the same as always.

- Nothing wrong with your appetite? You feel well?

- Why, sure. I feel fine.

- I've been watching you for some time, MacDonald.

- Yes sir. It used to make me kind of nervous.

- Not nervous any more?

- Oh no, sir.

- Look at this, your morning worksheet.

- The comptometer you operate is almost foolproof. Yet, you managed to miss your total by a little matter of 11000 dollars. To what do you attribute this?

- I don't know, Mr. Waterberry.

[...]