My 3 month old yorkie won't stop biting me. I have bite marks all over my hands, and toes. Even when I say NO or NO BITE, he still doesn't understand the concept. Sometimes when he is biting me, I try to let him do it, so when it hurts, I can say a loud OUCH or EASY so he understands it hurts. But I am losing my mind. For example, just now, he was laying in bed with me, and jumped on my face and bit my lip. Any suggestion? I don't know what else to do. His teeth are very sharp and it really hurts.