I never thought I'd see the day when the likes of him would be content to play baseball rather than plotting a prison-break.

10 seconds sound clip from Batman (1966) - The Joker Is Wild (S1E5) TV Series.

You can hear this line at 00:01:26 in the Blu-ray version of the movie.

Quote context

[...]

- Alright, Joker baby, fire it at me, baby. Fire it at me. Swing!

- Alright, fellas. Alright fellas. Alright, this is strike three!

- You know, I got to hand it to your boss, Warden Crichton.

- He's done a remarkable job with The Joker.

- Yes, he's brought modern penology a long way, chief.

- I never thought I'd see the day when the likes of him would be content to play baseball rather than plotting a prison-break.

- Toss it up there. Come on.

- Swing!

- You're out!

- You know, that's the one true joy in the warden's life. The rehabilitation of a hardened criminal. It warms his heart.

- Alright, come on, Hank.

[...]