Mark, Joe and a beautiful woman are sitting in a train carriage together.
The train goes into a tunnel and there is complete darkness.
Suddenly there is a kissing sound then the sound of a really hard slap.
When the train comes out the tunnel, the Mark and the woman are sitting as if nothing happened and Joe is holding the side of his face.
Joe thinks "Mark must have tried to kiss that woman, she tried to slap him, missed and slapped me by mistake".
The woman thinks to herself, "Joe must have tried to kiss me but accidently kissed Mark and got slapped for it".
Meanwhile, Mark is thinking "Great! In the next tunnel I'll make another kissing noise and slap the shit out of Joe again"!!
