If we're talking about school play trauma boy do I have some. I signed up to do the musical when I was in sixth grade (it was The Castaways but I thought it was Cinderella) and I got a really bad part because I was 12 and couldn't sing or act or dance for shit, but I got to be on stage to sing in the big finale which excited me. Right at the big climax to the song, when everyone was supposed to lift their arms up above their head, I just freaking passed out. Right there on stage. I just collapsed into an overheating, dehydrated lump of shame and missed high notes. And the stage director (my science/homeroom teacher) just crawled out on stage and grabbed me by the wrist to drag me off and out of view. I woke up after a few seconds, but I had to go to the nurse and I missed my bow and it overall ruined my night.
Then, several weeks later we all had to watch a recording of the performance to see how we did. And I guess not everyone on stage had noticed I fainted because they all looked at me when it got to that part of the clip and I just wanted to DIE. We were all children and I guess some of them thought I did it on purpose? For attention? And so at least one person resented me for a solid three years. She dropped her grudge when I passed out again several years later in English class in front of her, though. Guess she realized I actually had a blood pressure issue instead of an attention issue.
The amount of times that one of us said to our teacher that we wanted to go home because we were sick and see denied us because we had rehearsal is astounding but I vividly remember one boy just going fine and puking over his costume in protest. He was a hero for days.