That's the craziest thing I ever heard.

2 seconds sound clip from the Is This Goodbye, Charlie Brown? (1983) movie soundboard.

You can hear this line at 00:14:13.878 in the DVD version of the movie.

Quote context

[...]

- Marcie, are you crazy?

- Sweet on Chuck indeed. How I can be sweet on a guy who I can strike out with three pitches?

- Marcie, you're crazy.

- Maybe I ought to call Chuck.

- Sweet on Chuck.

- That's the craziest thing I ever heard.

- I guess the only civil thing to do is to call the kid and level with him.

- How could anybody be sweet on Chuck?

- I hate to think of him, though, lying there wide-awake and wondering. The poor kid. Maybe I should give him a break.

- Good grief. How could anybody fall for Chuck? The dumbest manager who ever lived.

[...]