Xena, they used to blow store clerks to get food that would have otherwise gone into the trash bins.
They were the 1960s freegans.
http://en.wikipedia.org/wiki/Freeganism
Freeganism is the practice of reclaiming and eating food that has been discarded. Freegans and freeganism are often seen as part of a wider "anti-consumerist" ideology, and freegans often employ a range of alternative living strategies based on limited participation in the conventional economy and minimal consumption of resources.
The word "freegan" is a coinage derived from "free" and "vegan".[1] Freeganism started in the mid-1990s, out of the antiglobalization and environmentalist movements. The movement also has elements of Diggers, an anarchist street theater group based in Haight-Ashbury in San Francisco in the 1960s, that gave away rescued food.[1]
The mansons however were making thier own psychdelics from common plants found on the sides of the roads. And they weren't just anti-consumerist, they were anti-hollywood. In a very big way.
I haven't listened to that song in over 15 years, at least.