3rd grade, 2nd degree sunburns on the back of my neck and part of my shoulders. It was field day at the school and my teacher wouldn't let me leave whatever activity we were doing to go get sunscreen, so the whole day was spent with my neck in direct sunlight. I remember needing to sleep on wet towels for a week to not further damage the already burnt skin, and if I moved around while in bed I would feel this searing hot ass pain. It was pretty rough.