One night at the Fillmore West when the Flaming Groovies were running late and Santana wouldn’t pick up the phone, Bill Graham tried out his stand-up comedy routine.
“AUSCHWITZ, my family died in, you white-bread motherfuckers!”
Then he did a bunch of impressions of people who none of the kids had heard of.
“All right, you’ll love this: Adolph Menjou at a bowling alley.”
The experiment was not repeated.