You'd better get him out of the store on some other pretext. Then, once outside, I'll explain it to him.
7 seconds sound clip from the Miracle on 34th Street (1947) movie soundboard.
You can hear this line at 00:56:21 in the Blu-ray version of the movie.
Quote context
[...]
- This is going to hurt Kris very deeply, and I don't want to be the one to do it!
- But in front of the children? Oh, but that'd be terrible.
- All right. If you think that it's better that way.
- Please keep a straight line. All day long to see Santa Claus.
- Good. Like to meet him. A few things I'd like to talk over with him.
- Oh, but I've made an appointment with Mr. Macy at 4:00. Want to tell him about something.
[...]