A man and his wife were getting a divorce at a local court, but the custody of their children posed 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 Coke comes out, does the Coke belong to me or to the machine?