Better yet ask him about Neanderthals and the Hobbits It has been proven with out doubt that they had fire, burried their dead, made tools and for all account looked like us and acted like us. Ask him why GOD create so many humans and then only keep us?
They will go around the cave men making every excuse and will believe their own excuses believing in their mind that you are so dumb to really think that we came from the cave men. But they can't get around the Neanderthal and the Hobbits as quickly because the Society is void in talking about them.