The most amazing math teacher started missing days, escalating taking least reductor appointments because of cataracts. One day he left early and never came back. It turned out that the doctor's appointments were trips to radiation and chemotherapy and that his cataracts were tumors in his eyes that have metastasized into stage 4 brain, spine, and liver cancer. He was an angel of a human. Every time the class had to take tests, he gave out dumb dumb lollipops. He could have stopped teaching and taken sick leave. He could have used his life savings to travel a farewell life vacation, but instead, even dying, he spent his last month's weeks, down to the days, teaching his students. He was a true hero. A lot of memories of him make me cry, but none compared to the five minutes before he left. As the principal took over the class, he stood at the front of the classroom and said, I'm going to be taking some time off. You might get some sad news. Sometimes the world isn't the fairest place, like sometimes how your parents might blame you for something your sibling did, but please remember, it's not any of your faults. Please don't be scared or sad. It's a happy vacation with my mom and I know it's coming. While I'm gone, please promise me something. Promise you'll be good. The whole class promised. He gave us each a hug and left. Three days later, he succumbed to cancer in his sleep. Even now in our 20s, of the classmates I still talk to, none of them can still eat a dum-dum lollipop without crying.