You wretched weakling! You should've thought of that before you rob your first bank.
6 seconds sound clip from Batman (1966) - A Death Worse Than Fate (S1E10) TV Series.
You can hear this line at 00:14:20 in the Blu-ray version of the movie.
Quote context
[...]
- It's like fringe benefit. Another $100,000 I get for... What is the word? Fingering Batman.
- I sign a contract with the syndicate.
- Kidnapping, murder. Where will it end?
- You wretched weakling! You should've thought of that before you rob your first bank.
- Now, stop the stupid questions and think of a way to lure Batman into our trap.
- Done.
- As I told you, I'd guessed your scheme. I cleverly left a clue.
- I stuck a book of your matches in Mrs. Copper's pocket.
[...]