Answer:
collective behaviour; crowd psychology, mob psychology,
Step-by-step explanation:
This type of behaviour refers to the spontaneous and sometimes erratic behaviour that is taken on my a crowd of people. This action is often unplanned and the individual loses its sense of responsibility and forms a single universal behaviour. This will increase as the crowd gets bigger. In emotional events such as the super bowl where there is already a crowd which understands that they are operating as a crowd and not individuals, they are more likely of have occurrences of these events. This may sometimes become dangerous destructive and may lead to loss of life in unfortunate cases.