If you go to a UFC event there’s a few things you need to keep in mind. The first thing you need to know is that the fighting is done by professionals inside the Octagon. It is not a place for you to try and show people how tough you are and definitely not the place you want to start a fight. Case in point is this little episode that took place at UFC 91 following the Lesnar vs. Couture fight. Security makes short work of the troublemaker.