- I can't think of a safer place. Can you, Scoob?
- Uh-uh.
4 seconds sound clip from Scooby-Doo, Where Are You! - A Night of Fright Is No Delight (S1E16).
You can hear this line at 00:08:10.582 in the Blu-ray version of the episode.
Quote context
[...]
- I think we better return to our rooms and lock our doors.
- Fantastic. That dummy looks just like Scooby-Doo.
- Do you think this plan will work, Freddy?
- Sure.
- I can't think of a safer place. Can you, Scoob?
- Uh-uh.
- Oh, don't worry! I'll save you.
- Great. But next time, please don't do me any favors.
- It's some sort of an old secret passage underneath the mansion.
- Huh?
- Footprints. The Phantom Shadow must have been this way.
[...]