Almost everyone who has played in little league baseball or has had a kid who has played can relate to this...  The angry little league parents.  These parents can either be yelling at their own kid or yelling at his or her opponents.  They take the game way to seriously.  Sure it's a competitive game and everyone should be trying their hardest to win, but do you really need to yell "You can strike out this kid, Jim!  He sucks!  He hasn't hit a ball all day!"

A little league baseball field decided to take matters into their own hands when dealing with parents bullying kids.  The field posted an anti-bullying sign on the fences of the ball park... For parents!

Reddit