Hiring him to guard jewels is like trusting a leaf of lettuce to a rabbit.

Batman (Adam West)

4 seconds sound clip from Batman (1966) - The Penguin Goes Straight (S1E21) sitcom.

You can hear this line at 00:11:58.330 in the Blu-ray version of the TV Series episode.

Quote context

[...]

- I'm gonna give you my card. Adieu.

- Come on, my dear boy.

- Well, you saved my life, if there's anything I can do..

- Penguin Protective Agency Incorporated.

- Holy leopard! What a change of spots.

- The Penguin. In business as a private eye.

- Hiring him to guard jewels is like trusting a leaf of lettuce to a rabbit.

- Let's race back and give Ms. Starr a warning.

- Nuisance. She's smitten with him. She'd scoff at us.

- So what do we do?

- We can't protect her, but we can save her jewels and at the same time set a trap.

- Great. How?

[...]