I realize your conspiracy theory is much more entertaining and can stimulate banter ad infanitum, but there is a logical explanation for the way your trades were filled.

I could be wrong, but here's something from the official side:

http://www.sec.gov/spotlight/keyregs...

Naked short selling is not necessarily a violation of the federal securities laws or the Commission's rules. Indeed, in certain circumstances, naked short selling contributes to market liquidity. For example, broker-dealers that make a market in a security4 generally stand ready to buy and sell the security on a regular and continuous basis at a publicly quoted price, even when there are no other buyers or sellers. Thus, market makers must sell a security to a buyer even when there are temporary shortages of that security available in the market. This may occur, for example, if there is a sudden surge in buying interest in that security, or if few investors are selling the security at that time. Because it may take a market maker considerable time to purchase or arrange to borrow the security, a market maker engaged in bona fide market making, particularly in a fast-moving market, may need to sell the security short without having arranged to borrow shares. This is especially true for market makers in thinly traded, illiquid stocks such as securities quoted on the OTC Bulletin Board,5 as there may be few shares available to purchase or borrow at a given time.