Well, ask me.
2 seconds sound clip from the Mister Ed movie soundboard.
You can hear this line at 00:01:43 in the DVD version of the movie.
Quote context
[...]
- Well, it's, uh... It's... It's, uh...
- No. If I told you, I'm sure you'd turn me down.
- First, promise me you'll say yes.
- Oh, no. That's how you got me to marry you.
- Look, let's not play games. What is it you want?
- Well, it's... it's... it's, uh...
- Oh, no. I just couldn't stand it if you turned me down.
[...]