Dr. Rod Johnson runs Highland Fertility Clinic in Highland, Texas. Back in the less PC 90s it was known as Stork in a Bottle Sperm Bank and Dr. Johnson made the mistake of hiring Beavis and Butt-Head to donate sperm, which was a disaster in multiple ways. Now Dr. Johnson is an older man and Beavis and Butt-Head are still trying to donate sperm, but Dr. Johnson has banned them from the premises and is still bitter that they almost ruined his clinic's reputation.