I tried for a while to generate interest in a 'no code' sort of limited liability contract which was literally signed with a drop of blood which said "No one is liable for anything that happens to me at this event" that was enforceable in court. Building collapses and 500 die? Oh well. Someone goes ape shit on acid and shoots people, tough. You slipped on some vomit and broke two vertebrae and now cant walk, sucks to be you dude.
The interesting bit for me has always been the contrast between people demanding that they should be allowed to throw parties like this, but then are unwilling to make themselves and no one else solely responsible for what happens.
Of all the things Cory did explore in his excellent book (mostly a screed on big content types) I wish he had tackled that one too.