Sometimes I remember that time this one boy in my 8th grade math class got up to grab a whiteboard marker and drew a big dick on the whiteboard while the teacher was out of the room to scold a kid who walked out or something.
It was just something that would catch your attention the moment you walk in the room. Teacher walks in, frustrated and then he noticed it.
We were learning about proportions so the boy and his friends were smirking like the little shits they still are and asked "so Mr., does that count as a proportion?"
Teacher just looks at it, disappointed but not surprised and he goes "well as you can see, the x repeats various times because of the lines and- guys just grow up"