Back in the late 60's, I met two or three drunks living on the streets with the rest of us hippies that had college engineering degrees and had gravitated towards our social structure and philosophy (no, I didn't talk like that back then, but it IS what was goin' down).
GREAT and intelligent conversationalists that had just said, "Screw it" and followed the Leary Law.
Turn on, tune in, drop out.
A lot did.