Grandmother Teacher, as I mentioned before, is not a bad woman. She's kind of a pain in the ass to teach with (or rather, it's a pain in the ass to teach her classes), but she doesn't actually speak English, so she doesn't bother me too much. I always correct the students when they call her Grandmother Teacher to me, because there's too much animosity in the nickname most times.
She's been at the school since I started there, three years ago. We've sat next to, or close to each other, at countless hwaeshik and lunch periods. Yesterday, I happened to follow her right into the cafeteria, and ended up sitting at a table alone with her and her other grandmother teacher friend. I heard her say it in Korean and thought, no.... I must have misunderstood. But just to clarify, she leaned over and said it in English, just to be sure: "You use chopsticks very well." Then, she looked back to her friend and repeated it once more in Korean, as way of explaining what she had just told me. In case the other grandmother teacher missed that, somehow.
Grandmother Teacher. That's it, really. I'm not going to pretend I don't know who the students are talking about anymore, when they use your moniker. You are officially on your own. Three years, and you've just gotten around to changing your mind about that. You've earned it, Grandmother Teacher.