Professional sports are just intense. They're obviously intense for the athletes on the field because there are few things more valued than winning in this world.
Then again, for the athletes, there's also the business side of sports. Sure they want to win, but just competing is their job. A job for which many are paid handsomely.
As for the fans? Well, that's an entirely different story. They've got plenty of money tied up in the sport(s) of their choice, but it's their own! And you know how money can make people crazy.
So many fans have got passion and enthusiasm to spare and many take the game to a whole new level—all in their own distinct, and often jarring, ways. They may be terrifying at times, but sports wouldn't be the same without them.
Here are 50 pictures of fans being terrifying.