The train goes into a dark tunnel and a few seconds later there is the sound of a loud slap. When the train emerges from the tunnel, the Kiwi has a bright red hand print on his cheek.

No one speaks.

The old lady thinks: The Kiwi guy must have groped the blonde in the dark, and she slapped his cheek.

The blonde Swiss girl thinks: The Kiwi guy must have tried to grope me in the dark, but missed and fondled the old lady and she slapped his cheek.

The Kiwi thinks: The Australian bloke must have groped the blonde in the dark. She tried to slap him but missed and got me instead

The Australian thinks: I can't wait for another tunnel, just so I can smack that Kiwi again