Now why, for the love of humanity, would people think that this Sweet 16 party is an open invitation to begin with?
From what I understand, it's not an uncommon practice on Facebook (and Twitter). Parties advertised as open, that it. We get lots of FLASH MOBS in our city, also. Cops now scan Twitter for upcoming events to hoard off the stamping influx, which has often turned destructive or become vandal prone.
If it is me I will sue Face Book and get some money of Zuckerberg. Why not? it's American way. Never take responsibility for your action and blame everybody else but you. There is a lady suing Dunkin donuts for putting sugar in her coffee.