It absolutely sucks when that happens. Something similar at age 10 (4th grade) when a teacher accused me of cheating because the handwriting was that of an adul

It absolutely sucks when that happens. Something similar at age 10 (4th grade) when a teacher accused me of cheating because the handwriting was that of an adult, and it was "obviously" my parents who did my homework. I tried to convince her by proposing to get a pen to write something right there. She wanted to see them nonetheless. They came and explained the situation. It also happened in college because the lab reports were too good and "obviously" plagiarized, or the grade was too good for someone who never attended. They'd literally "normalize" my grades, but by that time I felt more contempt than outrage towards education and academia, which have been torture since day 1.