I remember when I first started watching this show, there was an episode somewhere in May/June 2009 where Jethalal went to shop without his lunch. So Daya came to the shop with his lunch. There she saw that Jetha is trying to sell a Rotimaker to a customer. Daya interrupted them and said that this Rotimaker is no where comparable to manually prepared chapatis. The customer got convinced and goes out of the shop without buying. Later when Jetha comes to home, he takes the class of Daya and asks her to shut her mouth in matters not relevant to her. Although after that Jetha feel sorry as Daya decides not to speak ever again, but at least Jetha did the rightful thing..
But in this show in case of Sunder it is never been shown like that. Jetha has to bear everything by Sunder..I am not saying that Sunder always does the wrong thing, but one can understand the way he disturbs the life of Jetha..
Yes the element of fun comes when Sunder disturbs the life of Jetha, but I think from past 6 years they are giving wrong message to the society that a SAALA has all the right in the world to disturb the life of a normal JEEJA...And these days whenever Sunder comes in any of the episodes one feels that he should be beaten till death.. Such is cunningness of this character has developed...
What I mean to convey is that the fun element with Sunder should be modified a bit so that it doesn't looks unethical on SAALA-JEEJA relationship