If I were sure of that I wouldn't be worried. I think he's a lot more dangerous. A quack.

5 seconds sound clip from the The Wasp Woman (1959) movie soundboard.

You can hear this line at 00:25:02.209 in the Blu-ray version of the movie.

Quote context

[...]

- Buy you dinner? What's happened to your sporting blood? I thought we were gonna toss for the check.

- Oh no, you won the last three times.

- All right, look, I'll make a deal with you. Dinner is on me if you promise to keep an eye on what goes on in there.

- Oh, what do you want me to do, read her mail and send you messages in secret code?

- You could do worse.

- Oh no, Mr. Cooper, not you too.

- I've been trying to tell bright eyes here that I think Zinthrop is a phony and a confidence man.

- If I were sure of that I wouldn't be worried. I think he's a lot more dangerous. A quack.

- Well, I don't follow you, Coop.

- Well, a confidence man would just be interested in your money. The only damage they can do is to your pocket book.

- A quack can be fatal.

- So, I says to him, I says, Listen Irving, I'm getting sick of this TV every night, I mean, you know, we can do the same thing in a night club. Well, almost.

[...]