I suppose scolding "bloody vipers" is not a sin, yea? 
I feel there is some double standard in the person of Jesus. On one
hand, he can laugh and cry like a mortal, but he is like "immune"
to the temptations around him. Ok, you can say some holy monks are
like that, but they meditated and reached that stage, don't they?
Jesus, on the other hand, had to be "immune" since day 1 from his
mother's womb. Then 12 years later, he is like skipping the
adolescent stage of a normal teenager.
If he has an inborn "immune system" since day 1, then he cannot be
100% human.