Kissing And Slap
A Nepali guy, an Indian guy, a beautiful girl and an old woman are sitting in a train. The train suddenly goes thru a tunnel and it gets completely dark. Suddenly there was a kissing sound and then a slap! The train comes out of the tunnel. The old woman, beautiful girl and the Indian guy are sitting there looking perplexed. The Indian guy is bent over holding his face, which is red from an apparent slap. The old woman is thinking: That Indian guy must have tried to kiss that girl and got slapped. The Indian guy is thinking: "Damn it, that Nepali guy must have tried to kiss the beautiful girl, she thought it was me and slapped me instead." The beautiful girl is thinking: "That Indian guy must have moved to kiss me, but kissed the old lady instead and got slapped." The Nepali guy is thinking: "If this train goes through another tunnel, I could make another kissing sound and slap that Indian guy again."

What Leads To What
1. Dumb man + dumb woman = Marriage
2. Dumb man + smart woman = Affiar
3. Smart man + dumb woman = Baby
Finally,
4. Smart man + smart woman = Romance