08/18/2026
Few announcements capture the strange social world of Woodstock as neatly as this warning. It came from Chip Monck, Woodstock’s chief lighting designer and one of the festival’s MCs. Monck had received word from the medical team that a batch of brown-colored L*D circulating through the crowd was causing troubling reactions. His task was delicate: he needed to warn hundreds of thousands of people without provoking the very thing that could make a difficult psychedelic experience worse, mass anxiety.
Monck later recalled, “The brown acid warning was pretty silly, but it was the only thing I could do without causing panic.” His solution became famous. After cautioning the crowd about the acid, he added a qualification that could hardly have belonged to any era but Woodstock: “But it’s your trip, so be my guest.”
The announcement captures something distinctive about the counterculture of the late 1960s. An ethic of collective care existed alongside a powerful commitment to personal autonomy. People were expected to look after one another, share information, provide medical assistance, and reduce unnecessary harm. At the same time, adults were largely left to make their own choices about their minds and bodies.
