The wise determine from the gravity of the case; the irritable, from sensibility to oppression; the high minded, from disdain and indignation at abusive power in unworthy hands.
Most bullies are the product of a stressful and often abusive home life. Next time a bully threatens or attacks you, just yell, 'Don't abuse me like your parents abuse you!' Then call children's services and tell them you saw this bully crying in the bathroom and you're worried about him. Bam! He just got moved to a foster home.