Squeak and Fran....I put the blame on people of course....
The two guys participating in the "Hey Johnny, let's see if you can catch my bullet", were about 19 -21 years old. The one, (a little soft in the head, honest) was on stag in the camp gate. The other, (not just soft in the head, but actually malleable) just teased him, calling him names, long enough to make him drag the working parts of the rifle back TWICE, so he loaded and ejected an empty case (put first in the magazine for obvious reasons), and then feed the blank (again put second in the magazine for obvious reasons!), flick the safety and fire the blank.
The sh@t from the uniform of the teaser was difficult to clean, and the only reason the moron on stag was not court-martialled, was that a sergeant in charge had a blank to replace the one spent (magazines are empied each stag change and bullets are counted). This thing was never reported of course.