Every class I take, of course I'm going to get criticism. It's expected. There is so much to learn. Today I discovered a bit of dojo etiquette. When Sensei offers instruction or criticism, acknowledge it, make the correction and move on. That's really hard for me. I grew up making excuses. Especially if I felt embarrassed or foolish... I would find a reason, any reason so that I could excuse myself and blame someone else for my mistake. Not in Karate and not with Sensei. Sensei told me to just say "Osu" and make the correction. He also said that if he tried to give his Master a reason for making a mistake, he would hit him with a stick. Got it.. no talking. Check.