A lot of people out there who don`t know shit about firearm safety.
I went to a gun show a couple years ago with a neighbor who was going to buy an AR, we met the seller in the parking lot. He pulled out the AR, showed it off, handed it to my neighbor who put it to his arm and got the feel of it he then handed it to me, first thing I did was pull the charging handle to make sure it was clear and POOF a fucking live round came out of the chamber.