DS is about 6.5 months old, has one tooth and has started biting. We feed on demand and he has just started weaning. Really don't want the faff of formula, but really really don't want my boobs bitten. I fed his sister until she was 22 months, can remember being bitten a couple of times but don't remember what I did about it. He has bitten about half a dozen times over the last week. It really hurts.