Not as of 1967 ... I was still in high school when the 'levitate the Pentagon' event occurred. On the other hand, I was already well-known for 'yippie-esque' stunts undertaken in a more local / purely mischievous context. By the time I was in college I was more resonant with the Yippie orientation than my similarly countercultural associates. Now that I think about it ... I can't remember if I actually stole my copy of Abbie Hoffman's Steal This Book.