DEBUNKED
Monday, 31 October 1988
Kesha's Inn
Berkeley, CA, USA
with Piranha
[No setlist details]
Confirmation:
San Francisco Examiner, 30 October 1988, page 14 Datebook
"KESHA'S INN - Monday: Faith No More, Piranha. Wednesday: Soul Beat. Thursday: Synthesis. Friday: Hank Crawford. 2618 San Pablo Avenue, Berkeley"

Bill confirmed via Twitter this show never happened:
@MrGould Twitter
On This Day:
Year Venue State/Country
1987 The Ritz, New York NY, USA
1990 Seattle Center Coliseum, Seattle WA, USA
1992 Globe Arena, Stockholm Sweden