- What if they refuse to pay?
- I've left them no choice.

5 seconds sound clip from Batman (1966) - When the Rat's Away the Mice Will Play (S1E12) TV Series.

You can hear this line at 00:06:16 in the Blu-ray version of the movie.

Quote context

[...]

- And good riddance it is.

- How frustrating it'll be for my colleagues when they'll learn that I succeeded where they failed. I'd sure like to see their faces when they hear about it?

- They'll have no one to outwit anymore.

- Regrettably, it is no longer our problem. For tomorrow we shall be miles and miles away in another country.

- With all that beautiful green dough.

- If everything goes according to plan, that is.

- And why shouldn't it?

- What if they refuse to pay?

- I've left them no choice.

- And my plan is foolproof, I promise you.

- I gotta go along with The Riddler. He ain't stood us wrong yet.

- Deeply touched.

- Whiskers, any problems last night with my friend the king?

[...]