A man was driving down a deserted highway when he noticed a sign that read: "SISTERS OF MERCY HOUSE OF PROSTITUTION — 10 MILES."
Thinking it was a figment of his imagination, he drove on. Soon, he saw another sign which said: "SISTERS OF MERCY HOUSE OF PROSTITUTION — 5 MILES."
Realizing these signs were for real, he drove on, and sure enough, there was a third: "SISTERS OF MERCY HOUSE OF PROSTITUTION — NEXT RIGHT."
His curiosity got the best of him, and he pulled into the driveway. On the far side of the parking lot was a sombre, stone building with a sign on the door that read: "SISTERS OF MERCY."
He climbed the steps, rang the bell, and the door was answered by a nun in a long black habit. She smiled and asked, "What may we do for you, my son?"
"I saw your signs along the highway, and was interested in possibly doing some business."
"Very well, my son. Please follow me," said the nun. He was led through many winding passages, and soon he was very disoriented. The nun stopped at a closed door and told the man, "Please, knock on this door," and left.
The man did as he was told, and this door was opened by another nun in a long, black habit, holding a tin cup. This nun instructed him: "Please place $50.00 in the cup, then go through the large wooden door at the end of this hallway."
He placed the money in this nun’s tin cup. He ran eagerly down the hallway, and slipped through the door, pulling it shut. As the door locked behind him, he found himself back in the parking lot, facing another small sign: "Go in peace. You have just been screwed by the Sisters of Mercy."