Murphy's Law: "Anything that can go wrong, will."
means that the worst possible thing will happen.
For example: They've been trying to cap the oil spill for 4 months, but nothing worked. It's Murphy's Law.
Murphy was an apocryphal engineer.
'apocryphal' means that no one knows whether he was a real person.
This word comes from "Apocrypha", which used to be books of the Bible; but later they were removed because no one knew whether or not they were true.
