I had problems with class games in grade school as well. I remember standing in front of the class and getting a multiplication problem wrong. I felt like my world just imploded and my face was on fire.

A few years later, we had a class spelling bee. The winner was to go on to the school wide spelling bee. It came down to me and one other person in the class. The idea of getting up in front of the entire school and spelling words scared me so much that I purposely misspelled a word so I wouldn't have to advance to the next level. It was the word "please". I spelled it with two e's. My teacher later spoke to me in private, stating that she thought that was out of the norm because I was the best speller in the class. I just told her I wasn't thinking right and it was just a mistake... haha, the rest is history I guess.