BHP Billiton has extended their offer to Potash Corp. shareholders to November the 18th. I wonder exactly how many people have tendered their shares at 130 bucks a share when the stock is trading 18 bucks higher. Any takers? Yes, no. If you have been out of touch, in the bush, in a coma (I hope you get better) or didn't care but now do here is a refresher, quite a fun one: Potash vs. BHP: The Fertilizer War From A to Z.