The story is told of a man in Massachusetts many years ago who found his
neighbor's horse in the middle of his field.  He was so angry about it that
he took the horse to the public pound.

Meeting the owner soon after this, he told him what he had done and added,
"If I catch him there again, I will do the same thing."

The neighbor replied, "Well, the other night I looked out of my window and
saw your cattle in my field.  I took your cattle and drove them over to
your house, and put them in the barn, and fixed the gate.  If I catch them
there again, I will do the same thing."