A man and his wife were in Divorce Court, but the custody of their children posed a problem.

The mother jumped to her feet and protested to the judge that since she had brought the children into this world, she should retain custody of them.

The man also wanted custody of his children, so the judge asked for his side of the story.

After a long moment of silence, the man rose from his chair and replied: "Your Honor, when I put a dollar into a vending machine, and a Pepsi comes out, does the Pepsi belong to me or to the machine?"