I know the reaction EVERY PERSON that reads this will have:
My brother and I were throwing 1/2 filled (with water) Gallon milk jugs into the air, and shooting them with his new Breach break single shot 10 gauge shotgun. Every 15-20 rounds one would misfire, and NOT go off. After about 100 shells were scattered around us the gun got worse and started to tear the rim instead of ejecting the shell. We would tap the butt on the ground, and the shell would fall out. One shell misfired, AND tore the rim. There was a dimple on the primer from the hammer, and the shell would not tap out. My brother turned the barrel around, and proceeded to BLOW INTO THE BARREL! He is fine... I never got over it!