Poem on Farting

I least expected this poem in one of my latest reads - Hall of a Thousand Columns by Tim Mackintosh-Smith; the author retraces Ibn Batutah's route in India.

The most sagacious men of Hind,
Have spoken to the point on the wind:
'If you should feel a fart come on,
To hold it in is very wrong.
Fling wide the gates and let it loose --
Its breeze to ease will sure conduce!
We class as not nice habits these:
To blow one's nose, to cough, to sneeze;
The oral fart, or belch, is worse --
It smells far sweeter in reverse.

I read it twice in the book just to get the 'flow' right  :)