Bruce. Oh, you old stick-in-the-muds. Off to a silly board meeting in the middle of a baseball game. How could you?

10 seconds sound clip from Batman (1966) - Rats Like Cheese (S1E8) TV Series.

You can hear this line at 00:23:29 in the Blu-ray version of the movie.

Quote context

[...]

- Now, gentlemen. Two against three. I'd say the odds are even.

- What took you so long? I phoned you before I came in here an hour ago.

- We took a wrong turn off route 49.

- Say cheese.

- Oh, get hip. Not cheese. Mr. Freeze.

- Alright, one more, one more. Thank you, thank you.

- Thank you.

- Bruce. Oh, you old stick-in-the-muds. Off to a silly board meeting in the middle of a baseball game. How could you?

- Work before pleasure, princess.

- How do you feel after your ordeal, Paul?

- Great! Feel like pitching tomorrow.

- We can sure use you, especially against those Motor City wheels.

[...]