- That Indian sure spoke good English, considering he's supposed to be a thousand years old.
- Maybe he went to night school.

Velma Dinkley (Nicole Jaffe), Shaggy Rogers (Casey Kasem)

7 seconds sound clip from Scooby-Doo, Where Are You! - Decoy for a Dognapper (S1E5).

You can hear this line at 00:14:00.823 in the Blu-ray version of the episode.

Quote context

[...]

- OK, gang. Let's explore.

- What's that?

- Look! Up there!

- Leave this place, paleface intruders, or suffer fate of Spanish conquistadores buried in desert below!

- That's him! That's him!

- Remember my warning and go!

- That Indian sure spoke good English, considering he's supposed to be a thousand years old.

- Maybe he went to night school.

- OK, everybody, we'll head for the dome-shaped building.

- Hey, where's Scooby?

- He'll catch up to us. Let's move on.

- Wait for me!

- Hey! Get away from me! Get out of here! Leave me alone! Go away!

[...]