An atheist professor was teaching a college class and he told the class that he was going to prove that there was not a God. He said, "God if you are real, then I dare you to knock me off this platform. I'll give you 15 minutes!"
Ten minutes went by He kept taunting God, saying, "Here I am God, I'm still waiting" He got down to the last couple of minutes and a BIG 240 pound football player happened to walk by the door and heard what the professor said. The football player walked in the class room and in the last minute, he walked up, hit the professor full force, and sent him flying off the platform.
The professor got up, obviously shaken and said, "Wow, where did you come from and why did you do that?"
The football player replied, "God was busy, so He sent me!"