Math Teacher: You're wrong!
Me: But I got the correct answer.
Math Teacher: But it's not the right method!
Me:; IT MAY NOT BE THE SAME METHOD, BUT IT'S THE CORRECT ANSWER, SINCE THE HARD WORK THAT I DID TO GET THAT ANSWER WILL HAVE NO MEANING. AND JUST BECAUSE THE METHOD IS WRONG, DOESN'T MEAN MY ANSWER IS. THEREFORE, YOU HAVE TO GIVE ME MY MARK.