A nun is sitting on a train opposite a scruffy looking man who is eating a bag of prawns.
Everytime he eats one he spits the head at the nun and she throws it out of the window.Eventually she gets pissed off and pulls the emergency cord.The scruffy man looks at her and says "You'll get fined £50 for that you stupid slut!"and laughs at her.
She laughs back and says "when i cry rape and they smell your fingers you'll get ten years you scruffy git!!