Anger

Anger is an extremely powerful emotion for many reasons. It is extremely contagious, which leads more people to acting angry. Anger also leads people to do things without thinking about the consequences. Angry people do not act the same as they would when they are not angry and can become irrational and make bad choices. Angry people's actions can change their relationship with others, as anger is usually directed at a person and their irrational behavior is directed at them.
A chain reaction occurred from anger when my brother was hurting my sister's feelings, which made her very upset. My sister then stormed to her room and my brother chased after her. She then slammed her door and my brother's finger was in the crack of the door. This resulted in my brother having a broken finger. This entire situation had been avoided, if my brother was nice to my sister and/or my sister took a minute to calm down before she reacted violently to him.