Back in the late 70s a couple Marine recruits were killed during a live firing drill (it was the classic "crawl under strung barbed wire with a machine gun firing above the height of the wire" that seems to be part of every recruit training syllabus on Earth) idea is to get personnel used to noise confusion stress while still not being really dangerous. IIRC, the wire is strung two feet high (67 centimeters), the gun is set up with a barrier that will not allow it to fire lower than three feet (1 meter) and you have to go under it both on your belly and on your back, with your rifle and web gear. No way you should be able to get more than a couple dings from the wire, if that. One two separate occasions, within a couple months, two separate recruits managed to have full blown panic attacks and somehow managed to STAND UP, having pushed through the wire (which had to be tough as hell, not to mention a world class owie) in the middle of the obstacle and caught a bullet. People freaked out, one of the recruits was from the Bay Area up on the Peninsula, and the local media was howling for changes. Local LIBERAL DEMOCRAT House member, who had been an active member of Uncle Sam's Misguided Children in his youth, just slammed the Media.
Used the "more you bleed in training, the less you bleed in combat" defense and pointed out how many ten of thousands of recruits go through the same training with no issues. Finished with something along the lines of "the military is not a danger free world, deal with it". Some locals had a conniption fit. He carried his district by 30 point next election.