Sergei- I accidentally flipped the M9 to safe a few times (I wore out 2 M9 pistols that were new/refurbished when issued, in about 5 years so I shot them quite a bit) when I was in the mil. As an instructor in an advanced training course, I saw it happen frequently enough that it was a concern. It was borderline "chronic" with some of the "corn fed gym rats" that were common in my unit, esp. when they were wearing their gloves, which we wore on real world operations. In the real world, this only needs to happen once.Think about it- using a pistol out of necessity (extreme close quarters/confined space, ladder ascent, primary weapons failure, etc.) and the shooter experiences a malfunction- meaning the gunfight has already started- and the gun in his hand (a handgun is the least preferred gun in a gunfight, but you run what you brung) lets him/her down. Shooter employs the universally taught drill to correct the malfunction (remember- you have the rest of your life to get it done) and re-engages the threat, and... nothing. Because of what many believe to be a design flaw.
If a reserve parachute, which is another emergency use item for exigent circumstances when time is of the essence had such a design that MAY prevent the jumper from activating said item to save his/her life, I know the military would take immediate steps to modify or replace that reserve rag with quickness. I know this because the static line reserve was replaced or modified at least twice while I was in the military.
