In Pasco, Washington, a man using his gun for self-defense in his home accidentally shot himself in the calf and may require surgery.  According to the report, the man heard a noise that he thought was a burglar.  He was walking with a handgun when it accidentally discharged.

Source: 

Monica Petruzzelli, “Pasco Man Accidentally Shoots Himself in the Leg after Thinking he Heard a Burglar,” YaktriNews.com (July 30, 2020).