Howard Hessman was a member of the comedy group The Committee, based in San Francisco. This skit was part of the regular act. The whole family, and many friends, went to see the show in Santa Monica, CA, in early 1970, before shooting on ‘Billy Jack’ started back up. We thought they were hysterical. Tom agreed and put this and the park scene in the film.
(If you know the name of the actor playing this skit with Hessman, I’d really appreciate your updating us in the comments below.)
