Fans make sporting events interesting. They cheer, taunt, and threaten. Fans are one of a kind when it comes to sports. They will [most of the time] support their team no matter what happens.
Then there are the fans that annoy you until no end. The fans who support the losing teams and try to intimidate you because their team can't. Or the fans who brag just because their team won a World Series five years ago. Here is my take on the top 10 most annoying fans in sports.