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 was 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 and newly registered in the class, walked up to the professor, hit him full force in the face, and sent him tumbling from his lofty platform. The professor was out cold! At first, the students were shocked and babbled in confusion. The young Marine took a seat in the front row and sat silent. The class fell silent... waiting.

Eventually, the professor came to, shaken. He looked at the young Marine in the front row. When the professor regained his senses and could speak he asked, “What's the matter with you? Why did you do that?”

“God was busy. He sent me.”