"Do you want us to write our names on it in English?" asked the puzzled white American teenager in our rural American high school English class. I STILL have no idea what she meant. Edit to add: She was born and bred in Texas. Comes from a long line of Texans. She speaks no other languages. She is not British. She's never been out of Texas. And I STILL have no idea what she meant. I didn't even respond. I just stared at her in disbelief.
Not a teacher, but in a history lesson, during year 11, we watched a recreation of the nuke that hit Hiroshima. The video showed buildings collapsing and a guy being vaporised. After the video ended there was a brief silence before this girl said, “would that kill you?”