You know that boy you pushed over? 
He commited suicide last night.
You know that girl you called fat?
She's starving herself.
You know that boy you made fun of for crying?
His mother died.
You know that man you made fun of for his scars?
He risked his life for OUR country.
You know that man you stole that leather pouch from?
He's homeless.
And everybody else you made fun of?
You either hurt them badly or ruined their life.

You think you know these people?
You don't.