A wife and a husband are sitting under one tree. They are also listening to a bird's crying. The wife feel so sweet in listening to the bird's crying, then asks her husband.
Wife: My dear! Why the bird sings so sweet like this?
Husband: Well, it must sing sweet, because its heart is fresh, not so complicated or full of troubles like me!
Wife: How your heart is complicated, my dear?
Husband: The bird has no wife. The bird is free single. It does not owe anyone. It does not care about working. It never hurt or headache because of wife's cursing....etc. So, The bird must sing sweet like that!
Wife: Oh! I see my baby!!!