I've already done that. Maybe you've read about a few?
4 seconds sound clip from the Sneakers movie soundboard.
You can hear this line at 01:04:30.900 in the Blu-ray version of the movie.
Quote context
[...]
- I agree. Who did you say you were working for?
- But the perception of reality.
- Posit, people think a bank might be financially shaky.
- Consequence, people start to withdraw their money.
- Result, pretty soon, it is financially shaky.
- Conclusion, you can make banks fail.
- I've already done that. Maybe you've read about a few?
- Yes.
- Yes.
- Cos, you haven't gone crazy on me, have you?
- Who else is going to change the world, Marty? Greenpeace?
[...]