One of the world's renowned geneticists was working on his greatest discovery yet: the complete cloning of a human being! He worked tirelessly, running thousands of DNA models through the supercomputer at the university until he finally had what had to be the working genetic sequence. 

He began growing the sequence in a large vat, forming first simple cells, then a small mass and then a fetus. Of course, he couldn't use anyone else's DNA for the experiment so he had used his own. Over a period of a month, triggering growth hormones and other genetic events, he was able to mature the original cells into a fully-grown man, a perfect duplicate of himself! 

He then set about teaching his mirror image the basics of humanity, from caring for its personal needs to learning to read, write, walk and speak. Everything went well except for one problem: the new being was afflicted with some defect akin to Tourette's syndrome. As soon as he learned even a little foul or rude language he injected it into every conversation. It was immensely annoying but a small price to pay for such an otherwise resounding success.

Eventually the time came for the geneticist to reveal his creation to the world. He announced a great breakthrough to the university staff and colleagues from around the world. He also invited his long-time girlfriend who he had kept in the dark the whole time about his grand project. He rented the rooftop of a fancy hotel and dressed his twin in a tuxedo to match his own. While the crowd of dignitaries waited he went to make sure the sound system and lights were ready for the unveiling. His rude twin, however, saw the beautiful girlfriend and walked over to talk to her. 

Of course, as was his habit, the duplicate proceeded to suggest to her the most vile and depraved acts while insulting her parents and alluding to her promiscuity. She was livid and stormed off. When the real scientist came around the corner she screamed at him, slapping his face repeatedly and told him that she never wanted to see him again for the things he had said to her. He immediately realized what had happened and, in a fit of rage, rushed over to his creation, grabbed him and threw him over the railing to the street below!

The police were summoned and rushed to the rooftop to arrest someone for murder. They questioned the scientist but he claimed he had done nothing wrong. It was his creation, he owned the patents to the process and it was his to do with as he wished. They called the DA and he said that since the victim had never been born there was no way to prove it had ever lived, so it might not be possible to show in court that a murder had been committed.

However, the police did arrest the scientist for making an obscene clone fall.