Beaufort businessman paints over graffiti on street signs and a building for sale.

A sign on Billy Gavigan’s office wall reads, “Action = Results.” “I was a Marine,” he says. On Easter Sunday he was riding around the Beaufort area with his young daughter when he took spontaneous action on something that has been gnawing at him for years. He spun his vehicle around, went to Lowe’s and bought paint and supplies. Two …