(My school had a no gum in class rule but the kids would do it anyway. In the fourth grade, we were lined up for music class and a kid offered me a piece and since it was right after lunch, I took it. Sometime during class I raised my hand to answer a question and I moved the gum so I could talk but I guess my teacher could tell.)
Teacher: (yelling) Are you chewing gum?!
(He literally throws his whiteboard marker on the ground and stares at me with his hands on his hips.)
Teacher: Get your stuff and go to the office, now!
(I left class and just sat in the office for the rest of the day, waiting for him to come to the office and yell at me some more but he never did. At the end of the day, I went outside to my bus, looking around to make sure the music teacher wasn’t there.)