Two nuns are driving in Europe

Sister Catherine and Sister Bernadette are two Irish nuns on a wirlwind  pilgrimage across Europe. While in Transalvania the two holy ladies dine at a local tavern and then continue to drive. A few minutes later, the come to a stop at a traffic light.

Suddenly, out of nowhere, a vampire jumps onto the hood of the car and hisses through the windshield.

"Quick, quick!" shouts Sister Catherine. "What shall we do?"

"Turn the windshield wipers on. That will get rid of the abomination," says Sister Bernadette.

Sister Catherine switches them on, knocking the vampire about, but he clings on and continues hissing at the nuns.

"What shall I do now?" she shouts.

"Switch on the windshield washer. I filled it up with Holy Water at the Vatican," says Sister Bernadette.

Sister Catherine turns on the windshield washer. The vampire screams as the water burns his skin, but he clings on and continues hissing at the nuns.

"Now what?" shouts Sister Catherine.

"Show him your cross," says Sister Bernadette.

"Now you're talking," says Sister Catherine.

She opens the window and shouts,

"Get the f--- off the windshield!"