Most 15-year-olds don't work 12-hour days or worry about coming face to face with a Kodiak bear.But that was the summer of 1977 for John Raymond Berg, the year he began the first of 14 trips to Alaska to work as a commercial fisherman.Now a partner at Berg & Berg, he said the experience taught him how to manage a business and "not to worry about the small stuff.""You plan as hard as you can, but it was such a dangerous job, you could die," he said. "With law on my worst day, I'm not going to …