I never should have said anything.
2 seconds sound clip from the It's an Adventure, Charlie Brown movie soundboard.
You can hear this line at 00:35:29.511 in the Blu-ray version of the movie.
Quote context
[...]
- This butterfly landed on my nose, see? Then, it suddenly turned into an angel and flew away.
- I really didn't. I just made it up.
- I think I've been chosen for some reason.
- I never should have said anything.
- Plain, simple, little old me.
- Well, the world can certainly use a message.
- How about this? If there's a foul ball behind third base, it's a shortstops play.
- Yes, ma'am. I'd like to speak to the preacher, please. The one I see on TV all the time.
- I thought maybe he'd be interested in the miracle that I personally know of.
[...]