A rabbi, a monk, and a lawyer are driving when their car breaks down in a remote area.
They spot a farmhouse and ask the farmer for a place to stay overnight while waiting for a tow truck.
"I have room in the house for two of you," says the farmer, "but someone will have to sleep in the barn."
The rabbi volunteers, "I have no problem with that. I'll go." He leaves for the barn.
Five minutes later, there is a knock on the door. The farmer opens it to find the rabbi.
"Sir, there is a pig in that barn," explains the rabbi. "In my religion, pigs are unclean. I cannot sleep under the same roof with a pig."
The monk then speaks up, "I have no problem with pigs. I'll go sleep in the barn." He leaves.
Five minutes later, another knock. The farmer opens the door to find the monk.
"Sir, there is a cow in that barn," says the monk. "In my religion, cows are sacred. I cannot sleep under the same roof with a cow."
The lawyer responds, "I'll go sleep in the barn. I have no religion." He leaves.
Five minutes later, there is yet another knock. The farmer opens the door. This time, the pig and the cow are standing there.