M.R.
I don't know about the carrots thing. My 10 month old eats everything under the sun! But I do know about the hitting. My son just turned 10 months old and hitting and pulling hair are his new means of entertainment. He hit my 2 year old in the face twice the other day and when my 2 year old started screaming that "baby hit me!" the reaction from my baby was a big grin and another attempt to whack him in the face. I think that at 10 months, a baby is just starting to realize that their actions can effect others. He's so fascinated to see that he does "this" and mommy (or whoever the victim happens to be) has a reaction. I have just tried to remain emotionless about his actions and to remove him from the situation. If I'm holding him, I'll put him down. If he's playing with his brother and he hits, he goes to his crib by himself. He seems to be getting the message!