Emotions are contagious
The diagram above shows you exactly how anger can escalate. When we watch someone doing something, in our mind we picture ourselves or see ourselves doing the same thing.
The key is to understand that ‘Emotions are contagious’. When we realise that emotions are contagious we can choose to react the same or different. Getting angry at someone will usually only make the situation worse. What you are looking to do is calm your emotions so that you can solve the problem rather than create a new one.