Test failed

This week was so disappointing. We wrote a Japanese vocabulary test but I forgot all words because the night before I went out with friends till late. During the test I was still drunken so I did a lot of mistakes and couldn't remember the right answer. The next day we received the corrected test sheet and I just saw the check mark written on it. "Yeahhhh. I did it excellent", I shouted and showed it all students. But instead of praises I received just a "Oh I'm sorry, next time you won't fail". It seemed to be wrong, because in Japan a "check mark" means not right, but wrong. Too bad, next time I'll get better prepaired^^