I'm waiting for the derivative market to experience a prolonged monetary contraction.  I haven't actually written and run a simulation, primarily because I don't care any more, but I think loses will be much greater than expected (possibly over 100%!) due to a thin secondary market and the fact the downside of a leveraged financial instrument is greater than the upside.  

She believed in nothing; only her skepticism kept her from being an atheist. -- Jean-Paul Sartre