That's one thing even old Johnny couldn't teach me to do.
5 seconds sound clip from the El Dorado (1966) movie soundboard.
You can hear this line at 00:38:43 in the Blu-ray version of the movie.
Quote context
[...]
- I don't figure on getting rid of that hat.
- No?
- No.
- Johnny Diamond, he's the friend I... The man that raised me.
- What about learning to use a gun?
- Johnny didn't believe in guns. He always thought...
- He's dead. Think about that, unless you can learn to stay out of trouble.
- That's one thing even old Johnny couldn't teach me to do.
- Well, I'll be moving along. Good luck to you.
- You don't suppose I could ride along with you?
- No.
- Well, I hope everything works out all right.
- Whatever it is you're going to do.
[...]