A Puerto Rican Joke! It's Only a joke!?

Everyone knows that there is a Bethlehem in Pennsylvania but few, outside the commonwealth, know that there is also a Nazareth. The town and the city are connected by PA route 191, Nazareth Pike. One dark drizzily night in December a man was driving PA route 191 from Nazareth to Bethlehem. Just outside Hecktown, as he was moving slowly along this country road he noticed a shape in the drizzle. As he got closer he saw that it was a man pulling a donkey and there was a woman, very pregnant, sitting on the donkey. Having almost run over the donkey, the driver, very incensed, stopped and got out to talk to the man pulling the donkey. "You know I almost ran over your donkey!" "I am sorry but I have to get to Bethlehem to pay my taxes." "Right! I guess your name is Joseph, too." "How did you guess?" Driver, "I'll bet you're going to tell me that that is your wife, named Mary, riding on the donkey, and that she is going to have her baby in Bethlehem." Joseph, "Right, again." Driver, "And when the baby comes, you are going to name him Jesus, right." Joseph, "What do I look like, a Puerto Rican?!"