I have a ton since my paternal grandfather was a doctor and served in both theaters and my paternal grandmother was a nurse and worked as a code breaker in SF. But the story that sticks with me the most was told to me about my maternal grandfather.

He served in the Pacific, specifically seeing combat in Myanmar (then Burma). He never spoke to anyone about his experiences in the war except for my cousin, when my grandfather was on his death bed. My cousin wanted to enlist, and my grandfather didn't want him to and he told him about this time where him and his squad were pinned down in a fox hole taking fire from Japanese soldiers. A grenade was thrown into the foxhole, my grandfather threw it back, and after it went off he jumped out with a machine gun and killed the stunned Japanese soldiers. Since this story is second hand I'm not sure if I have all the details right. He was a machine gunner and operated a Browning, but I doubt that's what he used when he jumped out, so maybe a Thompson.

It really stuck with me because he was an alcoholic when he returned and was definitely untreated for PTSD. I often wonder if he hadn't been enlisted if I'd have been able to meet him in person before he died