SY: Teacher, hi!
Me: What's up?
SY: Nothing much! I got 94 on my English test!
Me: Wow, that's awesome! High five!
SY: Yeah! ...
SY: Uh... 선생님 덕 분이에요!
Me: Ah! That's, "Thanks to you!"
SY: Thanks to you! Teacher's class!
Me: Really? But I haven't taught you all semester.
SY: Last semester -- good!
Me: Well, I think you put in a lot of hard work, too, so good job! I'm very proud of you.
SY: Thank you! Bye, Teacher!
That warmed the cockles of my heart. Good for a cold, rainy day.