I found this clip on a whim (while looking up cool old-school HK movie clips) from a rare 1972 surrealistic drama written/directed by its star, Christopher St. John (who,according to IMDB, played in SHAFT) titled TOP OF THE HEAP. This seems to have been his only film, which is too bad because I enjoyed this clip and wouldn't mind seeking it out:
http://www.youtube.com/watch?v=k8a97wkzmqo