CHICAGO, IL --Everyone has regrets in life. But usually those mistakes are not as obvious to everyone else. David Jonathan Winkelman got the call letters and logo for radio station KORB tattooed on his forehead. The 48-year-old heard the station jokingly offer a six-figure payout for any listeners who dared to do it. When the station explained that it was just a stunt, Winkelman sued, claiming the station was trying to permanently mark listeners so that they could "be publicly scorned and ridiculed for their greed and lack of common good sense." The mug shot above is the result of Winkelman's arrest last week in Davenport, Iowa. He's charged with failing to appear in court for operating a motor vehicle without the owner's consent. Winkleman's stepson got the tattoo as well in the same place. But he's had some good luck -- no mug shot. It gets worse. The radio station has since changed its call letters and switched from hard rock to easy listening.