Well...not mine...Paul Krassner's trip with the great Groucho. Published in the February 1981 edition of High Times magazine. He says:
"Groucho was interested in the social background of the drug. There were two items that particularly tickled his fancy.
One was about the day acid was outlawed. Hippies were standing around the streets waiting for the exact appointed minute to strike so they could all publicly swallow their LSD the exact second it became illegal."
Aron Ranen's Power & Control LSD in The Sixties" below: