The dealer was absentminded.
4 seconds sound clip from the Destination Freedom - The Trumpet Talks (The early life of Louis Armstrong) classic radio play.
You can hear this line at 00:13:18 in the radio play.
Quote context
[...]
- Sure, sure. Now you run 'long and peddle some more coal. Come back when you got the other twenty.
- The kid took a long look at me lying there...
- A cool silver trumpet between trombones and tubas...
- And he went and hawked his coal until the coins piled twenty dollars high..
- And he sat the sack on the dealer's counter again.
- The dealer was absentminded.
- Er... boy... just what's the meaning of this dirty sack?
- It means I got enough in it for the trumpet.
- That trumpet I paid down on. That one.
- Get your dirty hands off that instrument. You want me to call the law? I said get out!
[...]