Lots of vets in my extended family. My uncle was a U.S.M.C. BAR gunner in the Pacific during WWII. He somehow survived a Japanese mortar shell (unexploded, of course) passing through his stomach on Saipan, although he and the guy who carried him out were the only two survivors from his platoon. I've seen a photograph of him wearing a necklace of ears.
My father was a U.S.A.F. air recon photographer during the Korean war. He flew in the nose of a B-29 and took pictures of all sorts of things, including Russian submarines spying on nuclear testing in the Pacific. He was present for some of the a-bomb testing on Bikini Atoll, and is the only person I know who has actually seen a mushroom cloud first-hand.
My cousin won a Silver Star and a Bronze Star in the infantry in Vietnam, but he never talks about it at all. Kind of strange because he's one of the gentlest, most soft-spoken, well-adjusted people I know.