There is always two sided of life like a coin has two side, where coin is hold head and tail, and life is good and bad. Most ever your good side may not help others or provide any opportunity to grow and build up the relationship, community and others but every strps from your bad side is turn into different things along with leading to the destruction to demolishing the entire things arround you.
(from Internet: attention only)
We are a human beings and tossed with so many things near us with a decision taking, sometimes we choose to good side and sometimes chose to bad side. That means we have contained the both side inner of us. Probably the devil side and evil side, every time we try to hide our devil's attitude with the good manners and always keep in hide and not to express.
Just like we read a story in our rapid reader book " Dr. Jekyll and Mr. Hide. Where dr. is good and humble man with good manner but Mr. Hide is a man is nothing left to hold all the title from the devil side. We all have the devil inside of us but clam down with the situation and logical status.
There is actually no monoster is live in here or there, it only lays in you, your work that hurt people, your words that seems to be Negative, your behaviour that are showing rude to others is turn to be monoster. This monster can easily be controlled by you.
We should possible do the things for better and best for human being not to hate, aggression or hurting people.