Love Hurts!

Love hurts, literally. Aidan is a biter, all the time biter. He just as I was loading his picture bite my leg and then my arm as I was moving him away. How do you get a 10 month old to stop biting? I told Aaron he would have been kicked out of childcare by now because he bites everyone. I look like someone is abusing me with the amount of bruises I have on my right upper arm (that's where he is held and he will just take a chuck of your arm when he's feeling happy, or hungry, or whenever, just for fun! He won't understand the "teeth are not for biting book", you can't give a baby a time out, what do we do? He does cry when mommy uses her NO voice so I'm trying that. I think he thinks that voice is only for Alex though!!! Suggestions are welcome.