DS1 bit me one time I didn't do anything about it and he never did it again. DS2 has been biting me for a week now, not everytime, usually the daytime feedings. I am sure he's teething again. I've just kept a finger close to break the bite if he starts, but I'm very sore (bruised like) from his new bad habit. He doesn't clamp down for a long time, it's like he does it then stops before I can react.