Number 1 , I was 14 i think and was going duck hunting before school I had a beretta goldenlark semi auto 12 gauge had to go thru a fence laid the gun under and went thru picked it up and started to walk boooom! the load of number 4's went into the ground about 2 or 3 inches from my right toes I do not know what i did to set it off but i do know what i did not do i did not unload when going thru the fence i now unload put the gun thru then go thru reload and check all safeties... Number 2 was 23 or 24 shooting a colt combat commander with a friend i shot 3 or 4 rounds took my finger off the trigger and placed it on the front of the trigger gaurd turned the gun downrange and held out my hand for him to take it as i turned my finger slipped off the trigger gaurd and hit the trigger firing a round down range, i then gripped the gun with both hands and dropped the mag and un loaded it we were both shook up My mistake was not CLEARING the gun and making sure it was empty before handing it off never again. My wife and I do clearing drills each and every time we practice as part of shooting practice we drill it into our brains as much as possible and we show each other a cleared weapon before setting it down or taking it back in the house... and no one shoots my weapons unless they are familiar with it and show me after I show them a clear weapon...