I ended up teaching a serious but extremely slutty gyaru high school girl. After I taught her a little, she got a good score on the test, and as a thank you she said something unbelievable: "Teacher, do you want me to have sex with you?" I said, "That's dangerous! You're trying to fire me just because I don't want to study, I'm not going to fall for that!" I managed to shake off her temptation, but she said with tears in her eyes, "I don't mean that, I... this is the only way I can repay you."