Some guts from that clerk 7-Eleven clerk disarms shotgun-wielding manA service station worker has fought off a would-be robber in Maryland, with CCTV capturing the moment he wrenched a shotgun off his attacker.Video shows the worker serving two customers as the would-be robber approaches. He can then be seen snatching the shotgun and eventually tearing it away from the attacker, who then turns and flees.Police investigating the robber later found that the shotgun was not loaded at the time. An 18-year-old man was taken into custody the following day and has since been charged with attempted armed robbery.