Oh, goody. The old "robotic landers" argument. How much Moon rock has ever been brought back by robotic landers compared to the amount brought back by humans? What's different about the stuff brought back by humans versus the stuff brought back by robots?
"Now everyone was giving her that kind of look UFOlogists get when they suddenly say, 'Hey, if you shade your eyes you can see it is just a flock of geese after all.'"
"You can't erase icing."
"I can't believe it doesn't work! I found it on the internet, man!"