There's been so much talk about risk management and black swans, well I actually literally saw one today:

A Black Swan in Action

 

And to reinforce the dangers of or for black swans, the following warning had been put up:

You must always take the extremes of a distribution seriously. You can see the location for yourself here: http://goo.gl/maps/27j6w (you can see the warning sign in the middle distance.)