Yes, grad students at Berkeley in the early 1980s. For some reason I associate this technique with Bill Joy (who obviously was a major influence on a lot of wha

Yes, grad students at Berkeley in the early 1980s. For some reason I associate this technique with Bill Joy (who obviously was a major influence on a lot of what went into the 4bsd releases). However I have no evidence of this, nor whether any or what kinds of substances might have been involved.