They keep harping on the fact that the kids are so naughty. Normally kids who r 'shytans' as these seem to be r the result of a disturbed and unhappy household where things r not fine with the parents.
My take on their behaviour is this:
Kids r very sensitive to their surroundings and r quick to pick up on tension and anger. They feel that they r somehow responsible for it. They register this fact in different ways...either by withdrawing into themselves and become sullen or excessively naughty.
I think the kids in KAA have a problem becoz all is not well with the parents. Shiv's excessive criticism of the kids seems to stem from some hidden resentment that they were responsible for his separation from Ips as someone suggested.
I could be way off track and on Monday he could be giving high-fives to his kids!! But the new promo suggests that Gauri's dreams and desires have gone for a six and her only happiness are her kids which by the way don't seem to include the taller kid...at least in the promo.