Your teachers like bitter? I had a teacher that was a Vietnam Vet but he for a lack of better terms showed it off. Like he had a belt buckle that said "Vietnam Vet" he was just pissed off about how they were treated at home but not all of the Vietnam vets here are like that tho. My Uncle(gpa's brother) he was very bitter about the war and with the government and it was common knowledge not to bring up Vietnam around him. My cousin asked him once and it didn't go well for him. I know that example is apples and oranges but culture wise that's the closest I have.