Boy! At least you don't have to take another bath.
4 seconds sound clip from Scooby-Doo, Where Are You! - Decoy for a Dognapper (S1E5).
You can hear this line at 00:06:28.774 in the Blu-ray version of the episode.
Quote context
[...]
- Hey, take it easy. Slow down.
- Come on, Scooby. You're a decoy, remember? Keep your mind on your work.
- Sorry.
- Boy! At least you don't have to take another bath.
- Lucky for you, I'm a dog lover. Yuk!
- Wow! Look at that truck smoke!
- I'm coming, Scooby! I'm coming!
[...]