Williams went on a profanity-laced tirade that led to his own security dragging him off stage last night at the Oracle Arena.
At one point, Williams even challenged the heckler to a fight back stage.
The Bay Area News Group reports that Oakland police arrested Williams earlier this week after a brawl aboard a tour van.
Fans say last night's show started about an hour late and only lasted about ten minutes.
Many people are now demanding a refund.