I am an urban public school teacher. Back in the early 2000's an older lady worked in our building as a substitute teacher.
She was friendly, but never said much. The kids treated her shabbily, as they treated all subs. And by "shabbily", I mean they were disrespectful to her, insulting, and rude.
The administration did nothing to help her, as usual. It was only after she passed away that I learned she was a concentration camp survivor.
Mr Tchaikovski (not sure if the spelling is correct) made sure we knew he had been in a concentration camp. He had the fading tattoo on his forearm and didn’t cover it which led to questions.