It's here.
http://news.bbc.co.uk/2/hi/technology/6983375.stm
One very cold night in the middle of the desert, the herder set up his tent and left his camel outside.
After a while the camel poked his head inside and said "it's so outside, and there is plenty of room in here. Couldn't I just put my little head inside the tent for the night?" to which the herder agreed.
After a while, the camel said "my front legs are so cold and there's still plenty of room in this tent. Couldn't I just leave them inside for the night?" to which the herder agreed.
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