But if you were good for anything, I'd spare you.
4 seconds sound clip from Scooby-Doo, Where Are You! - Go Away Ghost Ship (S1E14).
You can hear this line at 00:09:40.814 in the Blu-ray version of the episode.
Quote context
[...]
- Stop your sniveling... or I'll make you walk the plank!
- What are you gonna do with us, Your Ghostliness?
- But if you were good for anything, I'd spare you.
- Huh?
- Good cooks, eh? Well, get up an fix me some dinner! And remember... it had better be good, or...
- Well, the seawater's boiling. I wonder what ghosts like in their stew, Scoob.
- Chains?
- Chains! Hey, yeah! Ghosts like chains. And, uh... oh, yeah! Some ashes from the stove.
- You know, this could be real good!
- Cobwebs?
- Cobwebs! Uh-huh. Delightful! Why didn't I think of that?
- Wow! Now... did we forget anything?
- Soap.
- Soap? I hardly use it myself, but why not?
[...]