A hindu, a rabbi, and a lawyer are traveling together and need to stop for
the night.

They stop at a farmhouse, and find lodging, with the qualification that
the house is only big enough for two of them, and one will have to sleep
in the barn.

The hindu volunteers and goes out to sleep in the barn while the lawyer
and rabbi sleep in the house.

A few minutes later, however, the lawyer and rabbi hear a knock on the
door. Upon opening it, they find the Hindu.

"There is a cow in the barn. In my faith, a cow is a sacred animal, and I
cannot sleep with a sacred beast."

The rabbi and the lawyer agree that perhaps the rabbi should trade places
with the Hindu.

Within a short time, Hhe hindu and the lawyer are getting ready to go to
sleep, when again there is a knock on the door.

Opening the door they find the rabbi protesting, "There is a pig in the
barn. It is an unclean animal, and my belief forbids me even near such a
creature!" Weary of the whole problem by this time, the lawyer pulls the
rabbi into the house, grabs a blanket and heads for the barn.

Almost immediately, there is a third knocking at the door.
The Hindu and the Rabbi open the door: It was the cow and the pig!