Opportunity's door knock

Opportunity knocks
Daily these days
All these small opportunities
With their infinite ways

Opportunity knocks
Sometimes quite loudly
Often is the most demanding of guests
Full of calls for small favours
Suggestions, requests
It often doesn't have behaviours
Apposite to polite etiquette
All the crowding opportunities
Some weighted with regret

It is often the case
That an entrance loudly proclaimed
Leaves guest that stays long after hours
And long past entertained
But when opportunity knocks
One can rarely complain
For as they come once,
Then they will come again.

When opportunity knocks
It can get under your feet
But with neat feet the opportunity
Can become complete
And with one opportunity complete
They become repleat
Then opportunity knocks on repeat and repeat.