This sas bahu serial is unrealistic and boring for a number of reasons:-
if I know it right ekta kapoor is not married, therefore has probably never interacted first hand with a real sas. so she is ill equipped to bring some realism to a serial that has not one but three ( or four ?) of these battleships.
even the worst sas is not that overtly scheming that she can think of a new attack plan every hour. they tend to be more subtle. and more effective.
successful businessmen don’t keep important business documents in unlocked cupboards at home.
even when they find such documents, most wives cannot understand the head or tail of business documents unless the lady is a b.com or an mba. at worst they may give them to the raddiwala.
if the son has a scheme, at least he will keep up the appearances of marriage. it is not possible that he would give the game away by sleeping on the floor. would you?