In a train carriage there was an Englishman, a Frenchman, a spectacular looking blonde and a frightfully awful looking fat lady. 

After several minutes of the trip the train happens to pass through a dark tunnel, and the unmistakable sound of a slap is heard. 

When they leave the tunnel, the Frenchman had a big red slap mark on his cheek.

The blonde thought - "That French son of a bitch wanted to touch me and by mistake, he must have put his hand on the fat lady, who in turn must have slapped his face"

The fat lady thought - "This dirty old Frenchman laid his hands on the blonde and she smacked him".

The Frenchman thought - "That fucking Englishman put his hand on that blonde and by mistake she slapped me".

The Englishman thought - "I hope there's another tunnel soon so I can smack that French twat again".