BUH-BYE! The county Board of Supervisors on June 27 fired county executive officer Jan Mittermeier, then cut her a $170,000 severance check on her way out the door —which sources tell us did not hit her on the ass. We suspect the 25-year county employee will land in the private sector, where shadowy, inflexible, autocratic management styles are all the rage these days. In other departures, controversial trustee Steven J. Frogue resigned from the South Orange County Community College District board effective June 30. Frogue sparked still-smoldering bitterness when he tried to hold a John F. Kennedy assassination seminar in 1997 that featured two speakers who wrote for an anti-Semitic newspaper and theorized that Israeli intelligence offed JFK. His stepping down fills us with perverse sadness. We looked forward to hearing "Springtime for Hitler" blaring over South County loudspeakers this coming election season. Auf wieder sehen, Steve.