Lightweights
I once took 8 tabs of 80-100 mike acid in a 12hr period and, whilst it was undeniably unnerving at points, I consider it a revelatory experience of enormous benefit to me. To my knowledge I'm entirely sane.

Barrett's grip on reality was tenous at best well before the LSD tipped him over the edge. I'd describe acid as a substance that opens a doorway in your mind (cf Aldous Huxley) - poor old Syd simply had faulty hinges to start with.

Perhaps a festival was simply the wrong set and setting (cf Timothy Leary) for such a whopping dose...

Ayahuasca - now that's the big guns.
( Monty Boyce, My cheese game is strong, Wed 7 Nov 2007, 15:03, Reply)