Hail Diego!!!

He’s the king of dogs by his own choice.
Behold his ruff, Enjoy his voice!
He raises it in time of doubt
to assert his power and raise his clout.

Bypassers make their passings brief
Their parting sighs denote relief.
And since he notes each falling leaf,
no way he’ll overlook a thief.

It is a fact that crime went down
the minute he moved into town.
All citizens should laud his fame,
and spread abroad his glorious name!!!

Prompt words today are relief, fact, king, behold and voice.