Two nuns, Sister Maggie and Sister Helen, are traveling through Europe in their car. They get to Transylvania and are stopped at a traffic light.
Suddenly, out of nowhere, a diminutive vampire jumps onto the hood of the car and hisses through the windshield.
"Turn the windshield wipers on. That will get rid of the abomination!" says Sister Helen.
Sister Maggie 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 in the Vatican," says Sister Helen.
Sister Maggie 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 Maggie.
"Show him your cross!" says Sister Helen.
Sister Maggie opens the window and shouts, "Get the fuck off our car!"