SAN ANTONIO – An argument turned violent outside southwest-side bar early Thursday morning, causing a man to be dragged by a truck, police say. At about 12:53 a.m. in the 7700 block of Guilbeau, authorities say two men had a “disturbance” outside a bar. They separated, and one of the men got on his motorcycle. Police say the other man took his truck and ran the victim over, dragging the man and his motorcycle through the parking lot and into the street.