Sense Sonnet - Tickler

Mail Tale

I made a letter bomb, and sent
It to city hall in protest
Of high taxes - my way to vent
And get my anger off my chest.
Time went by. No boom in the news,
And other stuff filled up my mind.
I got up from my nap time snooze,
And went to my mailbox to find
A bulky envelope that said
"Return to sender - postage due."
Still kind of drowsy in my head,
I failed to think that fully through.

That letter bomb - could this be it?
I thought as I opened - oh s--t!