Shocking video leaks from wild end-of-year 'rave' that shut down $35k-a-year Loreto Kirribilli school and put staff at risk - as we reveal cruel Snapchats taunting teachers who tried to stop it | Daily Mail Online

Barricades in the bathroom. Damage to school property. Teenage girls laughing like hyenas as they livestream their despairing teachers pleading for calm.