If you must keep him, at least tie him up so he won't go wandering about the place destroying things.
7 seconds sound clip from the Mister Ed - Season 1, Ep. 5 - Stable For Three TV Series.
You can hear this line at 00:02:28 in the DVD version of the movie.
Quote context
[...]
- Wilbur, you never ridee him. He doesn't do any work for us. Why are we keeping him?
- Well, he... he came with the house.
- Oh, I suppose if termites came with the house, you'd wanna keep them, too.
- Now, Ed, look, I just saw that barbecue.
- I'm gonna have to tie you up.
- But that's slavery. You know, we fought a war...
[...]