Ruck is an inmate.

Ruck was a shady buttered-butt battery-shape darkskin Blood with a face like a unpopular weasel, a high-honking splat of a nose and broccoli ears. He was ugly as a plug of pigs and stupid as untied shoelaces — not good shoelaces for new sneakers neither, he was dumb as old, frayed shoelaces for like keds or some shit.
From Thumper the Mover