How to you expect the over-looked, smallest kid in kinda to behave when he grows up and realises his Daddy's dream.
He was always going to be a know-it-all, know nothing Meglomaniac who can't recall, can't admit wrong-doing or fault and bend like rubber when pushed over a barrel.
A patehtic weak child is taught or forced to be that way and can only be expected to be the same as an adult, especially when surrounded by nepotistic sychophants.
