Sometimes having a light or other device on you can be a lifesaver.
I recall seeing a news story a couple years ago where a guy at a gas station was robbed. The robber took one shot at him before running.
When the police arrived they asked the victim if he was suffering any pain. He told the officer he had some pain in his chest. When they checked for wounds, the victim pulled out his iphone from his front left shirt pocket … right over his heart … and it had a 0.22 round embedded in it!