As soon as she gets back from shopping.
4 seconds sound clip from the Mister Ed - Season 1, Ep. 4 - Kiddy park TV Series.
You can hear this line at 00:07:58 in the DVD version of the movie.
Quote context
[...]
- Be sensible. What fun would a horse have sitting around watching people fish?
- What fun do people have watching horses run?
- Well, you're such a great talker. Why don't you talk to Carol about coming along?
- As soon as she gets back from shopping.
- Uh-oh.
- I just bought this one dress. All these are Kay's.
- Yes, and that's just what I could carry. The rest I'm having delivered.
- You'd better rush back to the store. You forgot to get snowshoes in case there's a blizzard.
[...]