If you initiate the bullying, then...
the person you've bullied figures out a way to give you a taste of your own medicine; I'm sorry but you forfeit the right to claim sympathy for your actions on the grounds of being bullied.
Brandon McInerney initiated the pattern of bullying when he physically picked on Larry King, had he not done that then none of this would have happened. Simple as that. Don't dish it out if you can't take it.