One reason a lot of veterans 'don't talk about it' if they have been to war is because the stories are so bizarre at times, people think your are full of crap and making up stories.
One of the first things that was taught in boot camp was basic hygiene. I thought the drill instructors were joking when they explained what toothpaste was and the motions used to brush your teeth. I took it for granted that everyone else was as lucky as I had been to be born into a loving family.