My 13th encounter with a peacock

The peacock and I
Were returning home
In a rickshaw

The peacock was bewildered
By the number of people we encountered
Who were laughing
He said: it is sentience

The next few days
He created graphs, bars, pie charts
About the history of laughter?
About its inventor?
About the first ever laugh?

He was meticulous
Which noted civilisation laughed the most?
How many laughs is one human permitted in one life-time?
What distinguishes a giggle from a laugh?
Is it correct to say all laughter is useless activity?
Can a sad man laugh?

The peacock asked me these questions
Since I had no answer
I merrily laughed