That's pretty sneaky.
3 seconds sound clip from the Mister Ed - Season 1, Ep. 5 - Stable For Three TV Series.
You can hear this line at 00:08:14 in the DVD version of the movie.
Quote context
[...]
- What are you gonna do about it, Wilbur?
- Me? (2)
- You could cover up for an old pal.
- Run down to the market, buy a few vegetables to stick back into the ground.
- Yeah. I thought you'd like it.
- Why do I do these things for you?
- Yeah.
[...]