A Scotsman, Englishman, Irishman and stunning blonde are sitting on a train.
The train goes through a tunnel and is plunged into darkness when all of a sudden, a loud 'smack' can be heard. When the train emerges back into daylight, the Englishman is sitting holding his face which is now bright red.
The Irishman thinks "he must have made a move on her in the tunnel and she's slapped him, good on her"
The blonde thinks "he must have wanted to feel me up and got one of them by mistake, and they've whacked him"
The Englishman thinks "someone must have tried it on with her, and she thought it was me"
The Scotsman thinks "I can't wait for another tunnel so I can smack that English b*****d again"