Do you remember any embarrassing moment when you first started to learn English ?

well, actually i remember a really embarrassing moment when i started learning English,iremember my teacher who always intended to make jokes.One day he wrote words "English gramer" on the blackboard.He asked us if that was correct .immediately i offered to answer the questions.i told him the E should be changed into an A ,the teacher said that was a good answer and he he changed the E into an A and he asked me if i was happy with the new spelling.with absolute confidence ,i said that it was now correct.suddenly ,the other students burst into laugh ,i looked around in confusion ,a friend of mine then whispered that it needed a second M. OH! i shouted out,and i can't forget my teacher's smiling face.it was correct but i still remember terrible feeling of the embarrassment from that moment .......does it happen to you and you have been through such situation?