A college professor, an avowed atheist, was teaching his class. He shocked several of his students when he flatly stated he was going to prove there is no God. Addressing the ceiling he shouted: "God, if you are real, then I want you to knock me off this platform. I'll give you 15 minutes!" The lecture room fell silent. You could have heard a pin fall. Ten minutes went by. Again he taunted God, saying, "Here I am, God. I'm still waiting." His count-down got down to the last couple of minutes when a Marine just released from active duty...