A scientist was successful in cloning himself, and was asked to speak at a national convention of cloning scientists at a meeting on the 45th floor of a New York skyscraper.
"My fellow scientists", he began.
Before he could utter another word, the clone jumped up and shouted, "Fuck you!".
Apologizing for the interruption, the scientist began again, "My fellow scientists..."
Again the clone sprang to his feet. He yelled, "This dumb asshole couldn't produce a copy on a Xerox. He's a fraudulent dickhead."
Incensed, the scientist grabbed him, and threw him out the window. The crowd gasped. A short while later New York's finest arrived and what had transpired was explained to them.
The policeman said, "We are going to have to arrest you."
"For what? You can't arrest me for killing my own clone!"
"We are charging you with, making an obscene clone fall."