Once, an old man was sitting on a bench of garden with his 25yrs old son,
There was a tree beside the bench.

Old man saw a bird sitting on the tree,
He asked the son- What's this??
Son replied it's a crow..

The old man again asked what's this?
Son replied- i already told you that it's a crow.

The old man again asked what's this?
Son angrily replied- are you deaf or mad, Papa..??
How many times to tell you it's a crow..Can't you understand.???

Old man patiently replied- my dear son, when you were 5yrs old,
You asked me 174 times the same question that what's this,
and i replied everytime with a kiss that,
It's a crow!
Now I asked you 3 times and you were irritated..

Note: It's the difference between the love of parents and love of children