Yup. Yesterday I had one. Scared the crap out of me. I know why it happened. I had shot the other day a lot. Then left my gun in my car for 2 days with highs in the singles. I pulled it out to test feeding with my new plus 5 ext mag. Pulled the slide back. Let go bang. After I cleaned my shorts I found the slug and the brass. Marks on the brass show the firing pin was stuck out as the brass road up. Once it head spaced bang. Lesson. Clean guns after shooting before doing anything else with it.