I probably should have posted an explanatory link.
I was referring to the Kool-Aid Acid Tests organised by Ken Kesey's Merry Pranksters in late 60s San Francisco where the aforementioned childrens' drink, laced with LSD, was freely available and the Grateful Dead were the house band.
http://www.google.co.uk/url?sa=i&sou...92205801959578
Dilution of battery acid is also important.
And neutralisation with a weak alkali. (washing soda?)