I learned it in the book Badass by Ben Thompson.
http://www.amazon.com/Badass-Relentless-Onslaught-Gunfighters-Commanders/dp/0061749443
[an actual example of a bear involved in WWII](http://en.wikipedia.org/wiki/Wojtek_(soldier_bear)
edit: yeah it's wikipedia, but.. there's other sources too, such as this
That looks pretty badass
If you liked this the guy who runs Badass of the week has a book which is full of awesomeness, highly recommended http://www.amazon.com/Badass-Relentless-Onslaught-Gunfighters-Commanders/dp/0061749443