[m21sniper]

At a far lower rate than most designs, but yes, there have been ND's with P7s too. One NJ state trooper managed to have TWO ND's with a P7, shooting himself the second time. And that's a "trained professional."

It is true that there is no such thing as an idiot proof design, but that doesn't mean it's wise to tempt fate by requiring a cocked pistol to have it's trigger pulled everytime it is disassembled either.

Most ND's happen during administrative handling, while stripping/cleaning firearms. Requiring the user- who may very well be an idiot- to pull the trigger before disassembly has no real world benefit whatsoever, but a huge and obvious downside.