It is not good for the passengers or the person doing it. For example, vulnerable people like people with asthma, lung problems, respiratory difficulties could be on the train and since it is an enclosed space with no open-able windows or air cracks, it can be very dangerous.
That arises from the greed of a few men and their function. The statement explains that a lot of problems arise from the greed of a person. ... The grammatical name for this statement can be ''Greed is curse''.
