Nuns

sister Mary and sister Joseph were driving along a country lane in their mini when all of a sudden a demon jumps out of the hedgerow, lands on the bonnet of the car and starts pulling the windscreen wipers apart.
Shocked and frightened sister mary screams to sister Joseph "Quick sister Mary show it your cross".
Sister Mary winds down her window leans out and shouts "OY GET OF MY f**kING CAR"