He's had enough of being a space ghost.
2 seconds sound clip from Scooby-Doo, Spooky Space Kook (S1E15).
You can hear this line at 00:19:41.247 in the Blu-ray version of the episode.
Quote context
[...]
- Now take a look at our ghost from outer space.
- He was wearing rubber boots to make those strange tracks.
- Dipped in phosphorus, no doubt.
- You can, like, shut it off, Fred.
- He's had enough of being a space ghost.
- Well, I don't believe it. It's Henry Bascomb, my next door neighbor.
- But what about those weird noises, and the flying thing?
[...]