The only Rave I went to was on a ride along with EMS to pick up a dead body (OD on drugs). There were crabs crawling on the body from the floor.

Where was this? How long ago? Any local Dance Safe chapter around (
http://www.dancesafe.org/) or other safety volunteers?
Stories like that always kick me, because the backlash just makes things worse. Local law enforcement cracks down and tries to shut own venues... but that just drives people to less safe venues with tighter invite distribution, so advocacy groups might not be there. I used to volunteer Dance Safe in NY/Montreal circuit
and I can really affirm that positive harm reduction is the only thing that really helps stop stupid unnecessary deaths, injuries, rapes, and price gouging for basic essentials like water.
When I lived in Rochester, NY there was a huge anti-rave kickback following the death of two kids at a show. For more than a year after the incident, most gatherings happened in homeless cities (big safety issue... desperate people surrounded by inebriated hedonists who can afford to spend $ on pure fun) or in private clubs who would turn off the cold water taps in bathrooms, then charge $10 for a 16-ounce bottle of water.
So high, so low, so many things to know.