Horrible gun mistakes/ malfunctions you have witnessed

[S&Wshooter]

Lets talk about mistakes and malfunctions you have personally experienced or witnessed. This includes breakages, destruction of the gun, kB's, people ruining guns and other things of that nature.

Let me start it off: My friend's brand new Marlin .22 automatic was messed up within an hour or 2 of him owning it when his grandfather tried to jam a .22 Magnum down the barrel and they had to go to a gunsmith to get it out