When that big cane gets straight up, watch out.
4 seconds sound clip from the Song of the South (1946) movie soundboard.
You can hear this line at 00:06:06.896 in the Blu-ray version of the movie.
Quote context
[...]
- Miss Doshi, where do you want me to put this?
- Well? What are you going to tell her? Have you changed your mind, or are you still going to stay?
- Oh, I have to stay, John. It wouldn't be fair to Mama.
- She has enough responsibility... I'm not going to saddle her with ours.
- But it's only for a short time. And she'd be only too glad to take care of Johnny.
- When that big cane gets straight up, watch out.
- Oh, Miss Doshy, Sally wants Johnny to stay here for awhile with you.
- Oh, I'm going back. And I want Sally to go with me.
- It's no use, John. I'm not going back.
- Then I'll have to go without you.
- And I'd better hurry, or I'll miss my train.
- Miss it! You won't regret it.
[...]