Two beggars are sitting side by side on a street in Rome. One has a Crucifix in front of him. The other one, the Star of David.
Many people go by and look at both beggars, but they only put money into the hat of the beggar sitting behind the Crucifix. A priest comes by, stops and watches throngs of people giving money to the beggar behind the Crucifix, but nothing to the other beggar.
Finally, the priest approaches the beggar behind the Star of David and says: "My poor fellow, don't you understand? This is a Catholic country."
The man says nothing.
The priest continues: "People aren't going to give you money if you sit there with a Star of David in front of you, especially when you're sitting beside a beggar who has a Crucifix."
The man just stares at him.
"In fact," the man of the cloth concludes, "they probably give to him just out of spite."
The beggar behind the 'Star of David' finally turns to the other beggar with the Crucifix and says, "Moishe, look who's trying to teach the Goldstein brothers about marketing!"