Before Joel D. Berg started practicing law he was a dental assistant, a disc jockey, he worked on a dairy farm, in a video store and spent some time as a bartender.“I have done pretty much everything,” Berg said. “One thing I did not want to do was work on an assembly line. I didn’t want to do the same thing day in and day out.” Working as a lawyer for nearly two decades, and now a McHenry County associate judge, Berg has …