Let me tell you something, it's kind of dangerous putting those knights up on white horses. They're likely to slip off, you know.

8 seconds sound clip from the White Christmas (1954) movie soundboard.

You can hear this line at 01:05:45 in the Blu-ray version of the movie.

Quote context

[...]

- Do you mind if I say something just for the record?

- Of course not.

- I think what you're doing for the general is one of the most decent, unselfish things I've ever heard of.

- No angle?

- No angle.

- I want to apologize for the way I sounded in Florida.

- I guess I've always been kind of a silly schoolgirl. You know the bit, the lady fair and the knight on the white horse.

- Let me tell you something, it's kind of dangerous putting those knights up on white horses. They're likely to slip off, you know.

- I think mine's here to stay.

- That's sure good to know.

- Makes a fellow feel a little shaky to hold up there all alone on one of those bleached chargers.

- Are you worried?

- Kind of.

[...]