You dolt! Do you think my son would be that stupid that he would bring my diary all the way back here?
11 seconds sound clip from the Indiana Jones and the Last Crusade movie soundboard.
You can hear this line at 00:50:41 in the Blu-ray version of the movie.
Quote context
[...]
- Yeah.
- Yes?
- You have the diary in your pocket.
- You didn't, did you? You didn't bring it, did you?
- Well...
- You did.
- Look, can we discuss this later?
- I should have mailed it to the Marx Brothers.
[...]