Traveling Salesman in West Virginia

A traveling salesman is in West Virginia when he comes upon a house with a little boy sitting on the front steps.

"Son, is your mother home?" The little boy nods yes.

"Can I see her please?" The boy nods again, and they go around to the back of the house where they find the mother on the ground, humping away with a sheep.

"Son, do you see what your mother is doing?" The boy nods yes.

"Do you know what that is?" The boy nods.

"Doesn't that bother you?"