I've learned how to take this harness off.
2 seconds sound clip from the The Best Years of Our Lives (1946) movie soundboard.
You can hear this line at 02:24:50.082 in the Blu-ray version of the movie.
Quote context
[...]
- But I can only find out by trying. And if it turns out I haven't courage enough, we'll soon know it.
- Wilma, you and I have been close to each other for a long time, haven't we? Ever since we were kids.
- I'm going upstairs to bed. I want you to come up and see for yourself what happens.
- I've learned how to take this harness off.
- I can wiggle into my pajama top.
- I'm lucky, I have my elbows. Some of the boys don't.
- If that door should blow shut, I can't open it and get out of this room.
[...]