You never heard a lion laugh, you never saw a gator grin.
8 seconds sound clip from the The Little Drummer Boy (1968) movie soundboard.
You can hear this line at 00:10:52 in the Blu-ray version of the movie.
Quote context
[...]
- Aaron, you perform next. The crowd is restless, you must please them. Are you ready?
- No, no. Smile, smile. See, only a smile pleases the crowd. Smile.
- Smile.
- You stubborn little fool, then wear a painted one. There. That's better.
- Now. Before that dolt juggles me out of my life savings.
- You never heard a lion laugh, you never saw a gator grin.
- A goose in a gaggle never gives a giggle. Why can't the animals smile?
- You never heard a mouse to fall, a crow that did much more than caw.
- Is an eagle too regal or is it all illegal? Why can't the animals smile?
[...]