Each time the results were identical. Little or no stress until questioned about number three. Then, hard stress.

7 seconds sound clip from the The Return of the Pink Panther (1975) movie soundboard.

You can hear this line at 01:08:32.369 in the Blu-ray version of the movie.

Quote context

[...]

- He was interested. Asked all the right questions.

- Then we went to the viewing room and I showed him the film taken from the museum's hidden monitoring cameras.

- This was the last group to go through the museum before it was robbed. You recognize any of these people?

- No. No.

- He appeared to study the film very carefully, and he claimed not to recognize any one of them.

- No.

- We questioned him three times about each one.

- No.

- You sure?

- Absolutely.

- This one?

- No.

- How about that one?

- No!

- Each time the results were identical. Little or no stress until questioned about number three. Then, hard stress.

- Number three?

- A young man. The museum guide remembers him.

- Good morning.

- It could be better.

- How?

- You could go away.

- All right. But first, I'll need your truck.

- I haven't got a truck anymore. I sold it.

[...]