@Chireall That happened to my sister, she had our mother as her teacher too (Although I don’t know for sure what she called her during class, but I know they had lunch together), sis was just a bit older than Chi (a year or two), back then. She was the boss of the class, no one dared misbehave to her (they feared her too, not sure how much). But that only lasted in her era, by the time I got to school, mom already changed schools for promotion...