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Overall, Ghost Ship was more about Music and Art most of the time. My CAD draftsman often displayed his digital/Surreal art there for sale.
The rave was apparently an illegal fund raiser. That kind of event needs sanitation, and professional security. Therein lies the major breakdown.
The event was advertised, so there is no excuse for the city not requiring a permit; somebody looked the other way.
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Oh brother... when we start talking about doing the wrong thing the right way, we run into oxymorons right and left.