Re: 9 month old biter!
My DD (14 mos) had been only biting me. And telling her no just made her giggle no matter the tone of my voice or setting her down away from me. This week she bit my mom! And broke the skin. Yikes! Mom basically grabbed DD's arm and sat her down, more as a reaction than anything purposeful. She hasn't bitten me in a while, but next time I'll try the idea of pushing her arm on her own teeth. It's not an aggressive thing, she's not mad when she does it. I'm sure as someone else said she doesn't know it's hurting me. More likely a teething or playful thing. Curious to hear other ideas... I'll have to check the Dr. Sear's page too.