But then why all this booze and these crude pornographic photos smeared with mustard that had dried to a hard, yellow crust?

8 seconds sound clip from the Fear and Loathing in Las Vegas movie soundboard.

You can hear this line at 01:34:38 in the Blu-ray version of the movie.

Quote context

[...]

- How long had I been lying there? All these signs of violence. What had happened?

- There was evidence in this room of excessive consumption of almost every type of drug known to civilized man since 1544 A.D.

- Oh, ah, Debbie. Thank God. Oh, Debbie. Hmm? Look.

- What kind of addict would need all these coconut husks and crushed honeydew rinds?

- Would the presence of junkies account for all these uneaten french fries? These puddles of glazed ketchup on the bureau? Maybe so...

- But then why all this booze and these crude pornographic photos smeared with mustard that had dried to a hard, yellow crust?

- These were not the hoofprints of your normal God-fearing junkie.

- It was too savage, too aggressive.

- Put your hands where I can see them.

- What? What? Jesus God, man. Huh?

[...]