The Five Dumbest Things on Wall Street This Week: July 13

That said, the fact that Wasendorf was able to keep his crime going as long as he did using nothing but a P.O. box and a pen will certainly frighten off traders now on the fence about jumping into the futures markets.

The ones not already scared away by Corzine's malfeasance at MF Global that is.

--Written by Gregg Greenberg in New York.