The following story was printed in an old issue of New Scientist in the Feedback section and was related to me by a biology teacher...
A biologist was perusing the back of a scientific journal, when an advert caught his eye:
SELF-CLONING KIT. Create your own clone! Please send £100 to...
A self-cloning kit for just a hundred quid? The scientist could not believe his luck! So, he sent off for the aforementioned pack, dancing with excitement.
Up to 28 days later, the package arrived. Our hapless hero ran to the door, and tore open the suspiciously light cardboard box. In the box was a small slip of paper. He picked it up and read it:
<Go fuck yourself.