In the fall of 1965, Roy Thomas recruited fellow Missourian Dennis O’Neil to work as Marvel’s second editorial assistant; within a matter of weeks, one of the Magazine Management editors tried to enlist O’Neil in a scheme to dose Stan Lee with LSD.
“He was going to supply a sugar cube of acid,” said O’Neil. “My mission, should I have chosen to accept it, would have been to drop it into his coffee.” O’Neil, a self-described “hippie liberal rebel” who had been lectured by Lee for wearing a T-shirt depicting a cannabis plant to the office, nonetheless declined.
Text from Marvel Comics: The Untold Story