We were out target shooting, and there were about 10-15 people. We had brought various firearms, and I had brought a 12 ga. shotgun. Karen tried it out, but neither of us noticed that the forearm had gotten a little damp in a brief rainshower. Damp, polished wood + shotgun.......

Karen loaded it, aimed, pulled the trigger, and the shotgun went over her shoulder as the recoil pulled the shotgun out of her grip.