tragedy

i still remember that tragedy...when i was 9 years old, my mathematics teacher  ask me to do a mathematics question at the whiteboard and i can't do that because i do not know how to solve a division question..my teacher ask me to kiss the whiteboard and say like this 'why u so stupid?? it is just   easy question!'..  firstly, i think she just make a joke but when i look at her face, it was not a joke! at that time, i just a kid,why so serious?? i kiss the whiteboard and cry....i hate her very much because of her, almost 2 days, i do not talk with classmate because i think i was so stupid and self confident very low...every evening, i always do a mathematics exercise and thank to God, i get a flying colours in examination especially for the mathematics....now when i was 19 years old, i understand why she doing that to me..without her,perhaps i can't be like  what i have achieve now...THANKS TEACHER! ;-)