SKOWHEGAN, Maine (AP) – A prank bomb threat at a Maine Walmart was made by a 14-year-old New Hampshire boy. Police say the call to the Skowhegan store came in just before 9 p.m. Saturday. Skowhegan Chief Ted Blais says the few customers and workers still inside just before closing were evacuated and a bomb-sniffing dog was brought in, but nothing dangerous was found. Using the store’s caller ID system, the call was traced to a Belmont, N.H., home. Blais says it was simply a prank. He says the call remains under investigation but he expects the boy to be charged.