Hi Wirechief,
Here is a better one for you. When I first began to investigate PI's, I wondered the same thing and actually believed it also. Part of this was based upon some serious documentation done by a fellow nuggethunter and good friend.
This good friend of mine had kept careful records of all the nuggets he had found over a several year period while nugget hunting in AZ, and his records showed his nugget finds increased significantly around a full moon. Actually, he said his greatest success was right after a full moon.
What reinforced this was he convinced a friend to do the same, so the friend also keep records and his records reflected the same results.
Now, this nugget hunter is one of the best nugget hunters I have ever hunted with. He takes or rather, took it very seriously, (he has basically quit hunting because of health conditions).
Also, at the time, I knew the earth field effects existed but really didn't know how they were minimized. Now, when one investigates just how the earth's magnetic field is altered by the moon, then it was easy for me to see how something like this could occur.
So, the bottom line is, if you are dumb, than so am I. Maybe, we can form a club.
Reg