Two Irishmen are sitting at a tavern having a beer and watching the brothel across the street.
They saw a Baptist minister walk into the brothel, and one of them says, "Oh, it's a shame to see a man of the church going in there."
Then they watch a rabbi enter the brothel, and the other Irishman says, "Oh, it's a shame to see that the Jews are falling victim to sins of the flesh."
Then they watch a Catholic priest enter the brothel, and one of the Irishmen says, "What a terrible thing. It appears one of the girls must be quite sick."