I am too.
3 seconds sound clip from the A Chump at Oxford (1939) movie soundboard.
You can hear this line at 00:28:44 in the DVD version of the movie.
Quote context
[...]
- What did you do with the suitcases?
- I put them on top of the trunk.
- Have I been carrying these all the time? Get this off of my back.
- Let's rest awhile, I'm tired.
[...]