Sirius Black, fearful symmetry (a poem of one of my cats)

Sirius Black was a
Serious cat was a
Seriously black and grizzled old Tom

Sad Sirius
So cruelly rejected
Slunk down behind a dumpster
Snow drifting onto his
Scruffy, coarse fur

Sirius black, that
Serious cat, that
Seriously wounded and abused black cat

Shaggy Sirius
Slunk through alleys
Sliding through
Streets filled with half-melted snow
Searching for warmth

Sirius Black, my
Serious cat, my
Seriously wonderful grizzled old Tom

Saved from a shelter
Sheltered in my home
Satisfied Sirius
Sitting by the fireplace
Sated by the bowl of warm milk for dinner