Specific Examples of Salesman Conspiring to Sell

A man calls me on the phone and wants to sell me gold from his company's inventory.
I told him that I didn't want to own it because he is selling it and I didn't want to fall for his plot to get me to buy what he
was obviously dumping.
He told me that I was an idiot.

Now think about this more broadly as a conspiracy to get individual humans to own physical gold in order to drive the
price up so that their inventory is worth more.  

Similar conspiracies exist for Silver and other "precious metals".

The Concebot Concept Index