Called to give my all

I am a Deputy in a K-9 crew. I've been
trained to see it through. When
dangers near my ears perk up,
they taught me that as a little pup. I'm
often there to protect your rights,
my presence sometimes hinders fights.
I never attack with thought to kill, when
subduing one, my job I fill.
I never worry a single thought,
as how I will fare at a certain spot.
The love I have for my handlers care,
is all I need, each day to fare.
And if some day my luck turns bad,
I'll relish all the joys I've had.
To be with men who stand for good,
in a special kind of brotherhood.
The story's end, by now you know,
of how I tried for a better show.
I did my best, though I did fall,
when I was called and gave my all.