Don't worry, before I'll get you in trouble, I'll put my own head on the railroad tracks.
10 seconds sound clip from the The Big Knife (1955) movie soundboard.
You can hear this line at 01:32:49 in the Blu-ray version of the movie.
Quote context
[...]
- Nat, a little sparkling water.
- Excuse me, Charlie, that I'm crying.
- Don't worry, before I'll get you in trouble, I'll put my own head on the railroad tracks.
- There's nothing to defend about those records.
- It's late. Don't you boys ever go home to dinner? Do that.
- Do that for me, Smiley. Take Hoff home. Get him out of here.
- Stay!
- Oh, you're so lucky. If this were a movie, you'd have been on the floor 10 times.
[...]