"Water or Wine?" joke

The policeman signals to a car driver to pull over to the side of the road, due to the fact that he appears to be driving erratically.

He says to the driver, "You appear to have been drinking."

The driver answers, "No sir, I am just tired."

The policeman looks into the car and notices that the driver is a priest. He also notices that there is an empty bottle on the floor. He says to the driver, "What is, or should I say was in this bottle?

The driver answers, "Water."

The policeman says, "It is not, it's wine."

The driver looks up to the heavens and says, "Oh Lord, you have done it again!"