I'm sure I heard this one at school back in the dark ages, but it's still worth a giggle
Two nuns are traveling through Europe in their car. They get to Transylvania and are stopped at a traffic light. Suddenly, a diminutive vampire jumps onto the hood of the car and hisses through the windshield.
"Quick, quick!!" shouts the first nun, "What shall I do?"
"Turn the windshield wipers on, that will get rid of the abomination," says the second.
She switches them on, knocking the vampire about, but he clings on and hisses again at the nuns.
"What shall I do now?" shouts the first nun.
"Switch on the windshield washer. I filled it up with Holy Water in the Vatican, " says the second.
The vampire steams as the water burns his skin, but he clings on and hisses again at the nuns.
"Now what?" shouts the first nun.
"Show him your cross," says the second.
So she winds the window down and shouts: "GET OFF MY GODDAM HOOD!!"
