One of the first lessons that Jesus tries to teach those gather upon the mount where He spoke His most famous sermon was as follows.
Not to be angry with your neighbor without cause. It actually says brother, but as you go further into the sermon Christ will say that your neighbor and thus all are your brother and sister.
Now here is where it gets tricky. What you may consider cause, in reality may not be cause. A prime example is all the protest against the police lately. Especially in the case of Ferguson, MO.
It has been proven that Michael Brown attacked the police officer. Even the FBI agrees with this scenario, yet thousands have been marching around angry at the police and those that sided with the police in this matter. Thus those that have been angry, those that vandalized, those that caused chaos are guilty of being angry against their “brother” for no cause. So as Jesus stated this places those that did this in danger of judgment.
Now it would not surprise me at all that during this there were those that called those on the other side of this dispute worthless and fools. These two place those that said this in trouble to the point that those that used the word “fool” actually are headed down the path to damnation (“but whosoever shall say, Thou fool, shall be in danger of hell fire”)
So people need to think. People need to try and understand where they truly stand with their neighbor and with God and His Son Jesus Christ. For they are truly jeopardizing their eternal life due to listening to those the spread lies for their own cause and glorification.
But God gives you a way out. He offers a way for you to redeem yourself. How? You must seek out those that you have wronged and ask their forgiveness. If you vandalized a store. Turn yourself in to the police and face what you have done. If you insulted someone no matter the side you must find some way to get them to see that you are wishing to repent.
Place an ad in your local newspaper, make a post on Facebook or some other social media and seek to make it right with those you have wronged. Once you have done so God will know and forgive you.
Oh, and by the way. The raising your hands thing has been proven to not be true. So doing this also falls into that which I have been talking about.

Matthew 5:22 – But I say unto you, That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoever shall say to his brother, Raca (thou are worthless), shall be in danger of the council: but whosoever shall say, Thou fool, shall be in danger of hell fire. 23 Therefore if thou bring thy gift to the altar, and there rememberest that thy brother hath ought against thee; 24 Leave there thy gift before the altar, and go thy way; first be reconciled to thy brother, and then come and offer thy gift.