A childhood belief about teachers

Every Friday at my school we would always have chocolate milk instead of regular milk, so that morning I had drank my milk but it was expired. The teacher had always said if we were sick to run to the bathroom and you didn't have to ask. I was always a good kid and I thought it was rude to just walk out of the room and I raised my hand to ask if I could go to the restroom. She told me she would answer my question after she had finished her lesson. I put my hand down but I wasn't feeling any better so I raised my hand several more times and got the same response so I got up to ask her if I could go to the restroom and right when I got to her I threw up all over her shoes, the whole class laughed and the teacher almost cried because her shoes were new. I was sent to the nurse, while I was visiting her ,the principle came in to ask why I didn't go to the bathroom when I first felt sick. I told him I tried but the teacher wouldn't let me go so I thought that she got what she deserved for not letting me leave, he agreed and my mother was called to the school. We had a meeting and I ended up changing teachers. I was glad because I didn't really like her anyway.