When I still lived with my parents, there was a Vietnam vet a few houses over.
He received a Purple Heart, and told me about it. I don't remember if it was shrapnel or a bullet, but he got hit in the neck. I cringe thinking about all the important things that could have got severed, but he's fine and you would never know.
As for me, I had to wait a couple weeks for the elusive size 13 Wide steel-toe boots to arrive at my base.
I got them, and proceeded to immediately test them by "catching" one of those 5-foot Aviator's Oxygen bottles with my toes while sliding it out of the bed of our shop's pickup truck.
Injury avoided!
Edit: Also wanted to add, I went to college with an infantry soldier, who had back problems from all the crap he had to carry.
That sucks. I haven't seen him in a couple years and I hope he's doing OK.