'Marine Corps taught me not to [mess] around,' says James Kilcer
                                
                                
                                    (Newser) -
                                    As he turned to leave a gas station convenience store, James Kilcer saw a handgun pointed in his direction. He didn't hesitate. Within about a second, the 32-year-old Marine veteran reached out, disarmed the masked individual who'd just walked in, and pushed him toward the floor, per  USA ...