Angry Mob violence

Whenever I see random acts of violence of a mob against one or two people, I often find myself wondering why do they fight the way they do. 

Then there's the random sucker punch followed by awkward punching. 

Hockey fights are only real fights I've seen, and they never punch like they show angry mob types. I doubt they mob types have never been shown how to throw a punch. They just rely on their size rather than technique. If the the sucker punching type picks the wrong person, they'd be in trouble.