I joined the 'club' at an early age when sewing on my mother's old Singer treadle. I was a slow learner and sewed a finger, usually a thumb, many times. I did quickly learn to hold my hand still and turn the fly wheel backwards to raise the needle up out of my finger instead of jerking my hand away and tearing out a lot of flesh. Now, at age 78, my hands shake so badly that I can stick the needle into my finger when the sewing machine is not running. I'm nursing a digit right now because of just such an accident.