A mildly amusing poem i just wrote

Aroma

I was sitting in the park today when a smell met my nose;
And the story isn't all that interesting i suppose -
But I thought it good to pass the time; that it would be a lark
to work out what on earth could cause that smell in this old park.

Could it be from the foothpath by which the flowers grow?
Could it be from the bridge beneath which waters flow?
Could it be from the oak tree of which i am so fond?
Or is it coming from the lillies which grow upon the pond?

My nose has been bamboozled, my memory has been fooled,
my oflactory senses have been definitively "schooled",
for when i realized the true source, my rage lit like a lamp;
I had been sitting down-wind from an aging piss-soaked tramp!