Gee, if we just knew how he gets in to fix them.

5 seconds sound clip from Batman (1966) - The Joker Goes to School (S1E15) TV Series.

You can hear this line at 00:19:32 in the Blu-ray version of the movie.

Quote context

[...]

- I went over that looted lounge with a fine toothed comb. I didn't even find a single hair to analyze.

- Gosh. And school morale in a tailspin.

- Come a month from now, there'll be dropouts by the bushel.

- If he waits that long.

- I didn't want to cause panic at the student meeting, but I think The Joker has some other dirty plan afoot as well.

- Like what?

- I don't know. But I think it involves gimmicked machines and Woodrow Roosevelt High.

- Gee, if we just knew how he gets in to fix them.

- You've guessed it, Robin. Our next move.

- Stake out the school.

- Right again.

- Let's go!

- Hello, hello. Give me the sign.

- How do you stop a dog from barking in July?

- Countersign, Shoot them in June.

[...]