Now, you're making me feel like the proverbial stepmother.

5 seconds sound clip from the Miracle on 34th Street (1947) movie soundboard.

You can hear this line at 00:21:29 in the Blu-ray version of the movie.

Quote context

[...]

- I thought, as long as we're here, we might as well say hello to Santa Claus.

- He's a nice old man, Mother, and those whiskers are real too.

- Yes, yes, dear. Many men have long beards like that.

- Susan, would you stand over here a minute? I want to talk to Mr. Gailey.

- All right.

- I shouldn't have brought Susie to see Santa Claus, huh?

- Now, you're making me feel like the proverbial stepmother.

- I'm sorry, but it's just that I couldn't see any harm in just saying hello to the old fella.

- But I think there is harm.

- I tell her Santa Claus is a myth, and you bring her down here, she sees hundreds of gullible children, meets a very convincing old man with real whiskers.

- This sets up a very harmful mental conflict within her. What is she going to think? Whom is she going to believe?

[...]