If Bill Ackman is right about Herbalife being an overnight phenomenon, and you can make timely purchase of put options, then you would have a black swan trade.
https://www.youtube.com/watch?v=VuKr3EtcrpY
In his book "The Black Swan", Nassim Nicholas Taleb proposes a barbell portfolio with 85% to 90% in extremely safe instruments (like U.S. Treasuries) and 10% to 15% in low probability, high impact Positive Black Swan Stocks. Please comment or e-mail me with your ideas for Positive Black Swan Stocks.