I'll bet you left something behind. I always do.
6 seconds sound clip from the Double Indemnity movie soundboard.
You can hear this line at 00:55:08 in the DVD version of the movie.
Quote context
[...]
- My name's Jackson. I'm going all the way to Medford. Medford, Oregon.
- That darn cast itches something fierce, doesn't it? I thought I'd go crazy with mine.
- Palo Alto's a nice little town.
- I'll bet you left something behind. I always do.
- My cigar case. I guess I left it in my overcoat back in the section.
- Would you care to roll yourself a cigarette, Mister...
- No thanks, I really prefer a cigar. Maybe the porter could...
- Well, I could get your cigars for you. Be glad to.
- If it's not too much trouble.
[...]