When August 6 arrived, it wasn’t the debilitating scene everyone expected. A few hundred Yippies filtered in throughout the day, but they were barely organized and, for a while, totally harmless. No Black Panthers showed up for shortstacks. Minnie Mouse remained firmly in the patriarchy’s clutches. But at some point, the scattered group began experimenting. They cursed and chanted, “Ho-ho Ho Chi Minh, Ho Chi Minh is gonna win!” They also smoked a lot of pot. Then, they finally attempted to check an item off their “schedule”: the infiltration of Tom Sawyer Island.
Source: How a Group of ’70s Radicals Tried (and Failed) to Invade Disneyland