Violence is not a good thing, most of the time. But violence can be a proper response in situations where someone needs to be protected. This video is going viral and it shows a man on a bus who might have had too much to drink or smoke that day. Or, he might just be crazy.
Whatever he had going on led to this man verbally assaulting an elderly couple, screaming all kinds of expletives at a lady as she was sitting there with her husband. The other passengers are watching this joker yell and scream at the old woman right in front of her husband, who was unequipped to do anything.