My grandfather taught me. He taught me when i was young. He was an NRA riflemens club leader for forty years. When i was about eleven some kid accidentally shot his friend in the arm while handing him a rifle. They were scared to go home so they came to the gun club and told my grandfather. Mistake! He dragged them out in front of the class and screamed at them for five minutes as the one kid stood there bleeding everywhere. He was a hard man who taught me through fear and discipline how to care for a weapon.
Good thing he wasn't around the time i was drunk and messing around with a MAC 10.