- Providing, of course, that you reciprocate by giving me something that I very much want.
- And that would be?

9 seconds sound clip from the The Pink Panther Strikes Again movie soundboard.

You can hear this line at 00:46:46.707 in the Blu-ray version of the movie.

Quote context

[...]

(thunder rolling)

- Ah, Professor Fassbender!

- What an honor to have you, and your charming daughter as my guests.

- Who the devil are you?

- Ah, yes. Who the devil, indeed.

- Come. Sit down. Let us just say for the moment that I'm your host, and that I will do everything in my power to make your stay here at Mondschien Castle as pleasant as possible.

- Providing, of course, that you reciprocate by giving me something that I very much want.

- And that would be?

- I am fascinated by your work on time-space relationships, particularly the vortices of electromagnetic aberrations.

- I see. And do you work for a particular government, or do you expect to sell my discovery to the highest bidder?

- Neither, Professor. Nothing so mundane.

- You and I, we're going to join forces, Professor. We're going to build the Doomsday Machine, and conquer the world. Have a sweet.

- You're mad.

- Mad? On the contrary. Every day, in every way I've been getting better and better.

[...]