My 10 1/2 month old has started this thing where if he has something in his hand and you take it he grunts at you and try to hit or bit you. I have no clue where he gets this from, most of the babies in his class are bearly crawl and besides him it's only one other baby walking. Is this just a phase? I read that it's too early to discipline him as far as time out or scolding him and not to raise my voice so what do I do, this isn't something I want him to carry into his early childhood. Besides that he is such a sweetheart