A ventriloquist was driving it the country when he was attracted to a large
farm.  He asked and was given a tour.

As he was shown through the barn, the ventriloquist thought he would have
some fun.  He proceeded to make one of the horses talk.

The hired hand, wide-eyed with fear, rushed from the barn to the farmer.
"Sam" he shouted, "those animals are talking!  If that little sheep says
anything about me it's a damned lie!"