Sense Sonnet - Steamer

Name Recognition

I hung out my shingle to be
A criminal lawyer for real.
I never lost a case you see -
A natural in jury spiel.
Some sour grapes DA did check
My background and credentials out.
No law license - so what the heck.
In the courtroom there was no doubt,
I was a legal mastermind.
In my own trial I did prevail.
Not guilty the jury did find.
But the mean judge sent me to jail.

I should not be the one to blame,
Since Perry Mason is my name.