Most of the time if you fight back they'll leave you alone, its not like they pack alot of muscle.
Tell that to the chavs in playmouth that started a 30 man riot in the middle of town and put 15 people in hospital by smaking them to [img]/xxx.gif[/img][img]/xxx.gif[/img][img]/xxx.gif[/img][img]/xxx.gif[/img] with metal poles.