Oh. Don't hit Mugger. He's a nice dog.
6 seconds sound clip from the Hey There, It's Yogi Bear (1964) movie soundboard.
You can hear this line at 00:52:51 in the Blu-ray version of the movie.
Quote context
[...]
- Don't forget, we split fifty-fifty.
- Oh, great, great. I do all the thinking, and you want fifty-fifty.
- Quiet. Who asked you butt in?
- Oh. Don't hit Mugger. He's a nice dog.
(MUGGER GROWLS AND BITES THE HAND)
- Oh, come on, Mugger, let go. Nice dog, let go.
- Fifty-fifty. Whose idea was the high-wire-bear act anyway?
- You dumb mutt, you know I'm the brains around here.
[...]