I don't think I can do this.
4 seconds sound clip from the Mulan (1998) movie soundboard.
You can hear this line at 00:29:44 in the Blu-ray version of the movie.
Quote context
[...]
- Now, you gonna have to act just like them, so pay attention.
- Look. This tattoo will protect me from harm.
- I hope you can get your money back.
- I don't think I can do this.
- It's all attitude. Be tough, like this guy here.
- Punch him. It's how men say hello.
[...]