SALISBURY — As soon as the representative from the North Carolina Board of Barber Examiners walked in the shop, Daniel King got an uneasy feeling. With his clippers in his hand and a client in the chair, King was doing something he’d done hundreds of times — giving a haircut. It was 2012 and he was working as an apprentice barber at B&B Expressions while going to school at nearby Livingstone College.