It's a holiday for me yesterday.

Staying at home do nothing and sleep for whole day. Once in the blue moon :)

An engineer, a physicist, a mathematician, a statistician and a computer scientist were on a train heading north, and had just crossed the border into Scotland.

* The engineer looked out of the window and said "Look! Scottish sheep are black!"
* The physicist said, "No, no. Some Scottish sheep are black."
* The mathematician looked irritated. "There is at least one field, containing at least one sheep, of which at least one side is black."
* The statistician : "It's not significant. We only know there's one black sheep"
* The computer scientist : "Oh, no! A special case!"

Have fun with your day.