On the side of the people that wrote the books that we had to teach out of, I'm sure that's what they were told or told to teach. Perhaps there's no other way for the manufacturer to describe it...but we sure found a way. Grenades like the one Darren has and loose shrapnel would be collected and run through the ammo wing to be declared safe so we could put it into the training system. I still have pieces...and other stuff.