Fans watch fights to see who the best in the world is, but they also watch to feed an urge as well. They want to surround themselves with that energy that comes from watching two fighters square off and battle until the better man is left standing.
It is something that resides in every male alive and has for millennia.
Some men decide to learn martial arts because of this.
Others decide to try and become professional fighters because they want to experience the same feeling.
And then there are those who decide to pick fights in bars, especially when they aren't sober.
You never know who you are going to meet in a bar, though, and it might end up being someone tougher than you. In that vein, here are 12 fighters you would never want to get into a bar fight with.